HEADPHONES · YOUR NEXT FACE-OFF

Beyerdynamic DT 900 PRO X vs Nothing Ear (3a)

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

Beyerdynamic DT 900 PRO X

729906 · 48 ohm · black

Full product profile Official image

Exact model & source notes

The DT 900 PRO X (article 729906) is beyerdynamic's open-back, around-ear wired studio headphone built around its 48-ohm STELLAR.45 dynamic driver. It uses a detachable mini-XLR cable, two straight cables (3 m and 1.8 m) come in the box, and it works with beyerdynamic's free HEADPHONE LAB plug-in, which offers individual factory calibration for this model.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

WHICH SUITS YOU?

Choose the Beyerdynamic DT 900 PRO X for

A wired connection

Choose the Nothing Ear (3a) for

A wireless connection
Active noise cancellation: Yes vs No
Microphone: Yes vs No

Built from verified specifications that differ. Not a rating or a recommendation.

See the 7 verified differences

THE CONTENDER

Nothing Ear (3a)

6974434228757 · White · UK

Full product profile Official image

Exact model & source notes

Nothing Ear (3a) (store SKU 6974434228757 in White, the same on the UK and US stores) are true wireless earbuds with adaptive ANC up to 45 dB, Bluetooth 6.0 with LDAC, a 12 mm driver and on-bud call recording and Audio Snapshot capture.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

Beyerdynamic DT 900 PRO X UK & US retailers

UK & US price history: no verified listing yet

Nothing Ear (3a) UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison

Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.

FEATURES SIDE BY SIDE6 topics

Yes and No describe the listed feature. Missing evidence stays unverified.

SELECTED TOPIC

01 / 06

Microphone

A built-in microphone matters for calls and voice chat. An audio-only headphone connection does not supply a microphone channel.

Beyerdynamic DT 900 PRO XNo

Manufacturer specification · Supplied cables end in a stereo headphone jack; no microphone is listed.

Source 1 Source 2

Nothing Ear (3a)Yes

Manufacturer specification · Three microphones per earbud (six in total) with Clear Voice Technology for calls; the buds also support call recording and Audio Snapshot where available.

Source 1

Choose your must-haves

Start with your listening environment. Open and closed earcups suit different surroundings. A closed back is not the same as active noise cancellation. Check the exact cable and headphone output. We do not turn impedance, driver size or unpaired lab results into a sound-quality score.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

7 verified differences, most decision-relevant first. 1 is also drawn in Visual facts above. Missing information stays separate.

Wired / wireless connections

Beyerdynamic DT 900 PRO XWired; detachable single-sided cable with 3-pin mini-XLR at the headphone and 3.5 mm stereo jack with 6.35 mm (1/4-inch) adapter

Nothing Ear (3a)Bluetooth 6.0 (SBC, AAC, LDAC) with dual connection; USB-C charging on the case

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

Manufacturer specification · The specification lists only Type-C wired charging (full in 70 minutes); no wireless case charging is listed.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Check the exact configuration and source conditions for your use.

Active noise cancellation

Beyerdynamic DT 900 PRO XNo

Nothing Ear (3a)Yes

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Passive, open-back design; no active noise cancellation is listed.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)

Nothing Ear (3a)

Manufacturer specification · Adaptive ANC up to 45 dB (Nothing's laboratory theoretical maximum) over a 40–5000 Hz range, with Transparency Mode.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Check the exact configuration and source conditions for your use.

Microphone

In Visual facts

Beyerdynamic DT 900 PRO XNo

Nothing Ear (3a)Yes

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Supplied cables end in a stereo headphone jack; no microphone is listed.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

Manufacturer specification · Three microphones per earbud (six in total) with Clear Voice Technology for calls; the buds also support call recording and Audio Snapshot where available.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Check the exact configuration and source conditions for your use.

Battery life

Beyerdynamic DT 900 PRO XNot required: passive wired headphones powered by the audio source

Nothing Ear (3a)AAC: earbuds up to 6 hours with ANC on and up to 10 hours with ANC off; with the charging case up to 25 hours with ANC on and up to 42 hours with ANC off. LDAC: earbuds up to 4.5 hours ANC on / 6 hours ANC off; with case up to 20 hours ANC on / 28 hours ANC off.

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Passive headphones with no battery or charging.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

Manufacturer specification · Nothing laboratory results at 25 °C, 50% volume, AAC, other features at default settings; actual life varies with use. Talk time is listed separately (earbuds 4.5 h ANC on / 6 h ANC off; with case 18 h / 25 h).

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Manufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.

Driver construction

Beyerdynamic DT 900 PRO XDynamic STELLAR.45 driver

Nothing Ear (3a)12 mm dynamic driver, 32 Ω, PMI+TPU diaphragm

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read.

beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

Manufacturer specification

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Check whether the diameter describes the complete transducer or only its diaphragm. Different labels and driver sizes do not establish better sound.

Wearing style

Beyerdynamic DT 900 PRO XOver-ear (circumaural), open-back wired studio headphones

Nothing Ear (3a)In-ear, true wireless (liquid-silicone ear tips in four sizes)

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

Manufacturer specification · Two earbuds and a charging case; four pairs of ear tips are in the box.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Check the exact configuration and source conditions for your use.

Show 1 more verified difference

Rated frequency range

Beyerdynamic DT 900 PRO X5–40,000 Hz

Nothing Ear (3a)20 Hz - 40,000 Hz

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

Manufacturer specification · Listed as 'RF' under Sound in Nothing's specification table.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Range endpoints need their stated threshold. They do not describe response flatness or prove better bass, detail or sound quality.

Missing or non-comparable evidence (24)

Acoustic design

Beyerdynamic DT 900 PRO XOpen-back

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Nominal impedance

Beyerdynamic DT 900 PRO X48 ohm

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Companion app

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Nothing X app: Custom EQ with profile sharing, Advanced EQ (an 8-band equaliser), customisable controls, find my earbuds, dual connection and firmware updates

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification · Nothing X is for Android 8.0 and above and iOS 13 and above; on Nothing OS 1.5.6 and higher the settings are built into the phone. Custom EQ and Advanced EQ are listed under Sound features.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Battery capacity

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Earbuds 55 mAh each; case 500 mAh

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Cable length

Beyerdynamic DT 900 PRO X3 m

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Longest supplied cable; a second 1.8 m straight cable is also included.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Bluetooth codecs

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)SBC, AAC, LDAC (Hi-Res certified)

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Supplied plug and adapter

Beyerdynamic DT 900 PRO X3-pin mini-XLR (headphone end); gold-plated 3.5 mm stereo jack with 6.35 mm (1/4-inch) adapter

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Controls

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Pinch controls on the earbuds: pinch for play/pause or to answer/end a call; double pinch to skip forward or decline a call; triple pinch to skip back; pinch and hold for noise control or volume up/down; double pinch and hold, or pinch both buds at once, for Audio Snapshot or call recording.

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification · Skip forward, skip back and noise control are marked customisable in the Nothing X app; custom controls need to be set up from a phone (footnote 5). Call recording is only available in selected regions (footnote 10).

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated total harmonic distortion

Beyerdynamic DT 900 PRO X0.80% at 100 Hz, 0.05% at 500 Hz, 0.04% at 1 kHz (at 1 mW)

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Earpads

Beyerdynamic DT 900 PRO XVelour, replaceable; headband pad also replaceable

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Quick pairing

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Google Fast Pair and Microsoft Swift Pair

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification · Fast Pair works on supported Android devices running Google Play services 11.7+ (back to Android 6.0); Find My and device renaming support need Android 10 or later.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Headband pressure

Beyerdynamic DT 900 PRO X5.3 N

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

HEADPHONE LAB software

Beyerdynamic DT 900 PRO XSupported through a separate DAW plug-in, with individual factory calibration

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Free plug-in for DAW software (VST3, AU and AAX for Windows and macOS) with crossfeed and optional room simulation; there is no standalone version. beyerdynamic lists the DT 900 PRO X among the models offered FACTORY CALIBRATION, based on the production measurement data of the individual unit.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic HEADPHONE LAB — plug-in features, formats and FACTORY CALIBRATION model list

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

In the box

Beyerdynamic DT 900 PRO XHeadphones, 3 m straight mini-XLR cable, 1.8 m straight mini-XLR cable (each with 3.5 mm jack and 6.35 mm adapter), bag

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Low lag mode

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Low lag mode (latency as low as 120 ms)

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification · Latency can be reduced to as low as 120 ms only when the earbuds are paired with Nothing phones with Game Mode turned on (footnote 3).

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Multipoint (dual connection)

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Yes

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification · Dual connection is listed as Yes; Nothing describes dual-device connections on Android, Windows and iOS.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Maximum input power

Beyerdynamic DT 900 PRO X100 mW short-term; 30 mW rated continuous

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification

beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated sensitivity

Beyerdynamic DT 900 PRO X100 dB SPL at 1 mW / 500 Hz; 114 dB SPL at 1 V / 500 Hz

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Two references are given: per 1 mW and per 1 V, both at 500 Hz.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Serviceability

Beyerdynamic DT 900 PRO XNearly all components replaceable, including ear pads and headband pad

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Product page (Sustainability): 'If required, nearly all the headphones’ components can be replaced'. The spec sheet lists 'Soft, replaceable ear pads and headband pad' and states that the detachable mini-XLR cable can be replaced by cables of different lengths and connection options.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Spatial audio

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Static Spatial Audio

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification · Listed under Sound features. Nothing says it spreads sounds across a virtual 3D field; the pages do not mention head tracking.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Dust, sweat and water resistance

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)IP54 (earbuds and case)

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Nothing's table wording is 'IP54 water and water resistance for buds and case'. · Manufacturer specification

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Weight per earbud

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)4.53 g

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification · Each earbud. The charging case weighs 40.92 g.

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Dimensions

Beyerdynamic DT 900 PRO XNot verified

Nothing Ear (3a)Each earbud 31.2 x 21.7 x 24 mm; charging case 64.8 x 48.95 x 22.8 mm (height x width x depth)

Sources

Beyerdynamic DT 900 PRO X

No source recorded for this side.

Nothing Ear (3a)

Manufacturer specification

Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Weight without cable

Beyerdynamic DT 900 PRO X345 g

Nothing Ear (3a)Not verified

Sources

Beyerdynamic DT 900 PRO X

Manufacturer specification · Headphones without cable.

beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — official North America store page and technical data beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21)

Nothing Ear (3a)

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

0 shared fields have the same recorded value.

YOUR HEADPHONES. YOUR RULES.

Check against your must-haves

Feature matching for the features you select. It doesn’t rate sound or comfort.

Start with your listening setup.

Choose a starting point, then fine-tune your must-haves.

FINE-TUNE THE DETAILS

Your essentials.

These shortcuts select the features shown above. Check the fit against your own equipment and listening space.

A feature match describes the selected requirements. It doesn’t rate sound or comfort.

Open-back designFor a quiet listening spaceClosed-back designAn enclosed outer earcupDetachable cableUnplug the cable at the headphonesBuilt-in microphoneFor calls and voice chatActive noise cancellationNot the same as a closed back

YOUR CHOICE

Beyerdynamic DT 900 PRO X

Select a feature to check your fit.

YOUR CHOICE

Nothing Ear (3a)

Select a feature to check your fit.

Feature matching, not a sound-quality score. The specification table links to the evidence for each feature.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Beyerdynamic DT 900 PRO X

What it brings

A 48-ohm nominal impedance and a rated 100 dB SPL at 1 mW mean it is specified for use with laptops, tablets and phones as well as studio interfaces.
Manufacturer source Manufacturer source
The single-sided cable detaches at a mini-XLR connector and can be replaced by cables of different lengths and connection options; the ear pads and headband pad are also replaceable.
Manufacturer source Manufacturer source

What to check

It is an open-back design (beyerdynamic's operating principle: open) with no active noise cancellation, and neither the product page nor the spec sheet gives an ambient-noise attenuation rating.
Manufacturer source Manufacturer source
There is no microphone or inline remote; the supplied cables are audio-only stereo leads.
Manufacturer source Manufacturer source

Nothing Ear (3a)

What it brings

Nothing rates up to 10 hours per charge and 42 hours with the case using AAC with ANC off, or 6 and 25 hours with ANC on.
Manufacturer source
Pinching the buds can record calls or save up to a minute of what you are hearing (Audio Snapshot), which is then managed in the Nothing X app; call recording depends on region.
Manufacturer source

What to check

The case charges only over USB-C according to the specification, with no wireless charging listed.
Manufacturer source
LDAC cuts the rated figures to 4.5 hours per charge and 20 hours with the case with ANC on, and dust and water resistance is IP54.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

31 of 31 specifications Sources in each row

Source-backed specifications for Beyerdynamic DT 900 PRO X and Nothing Ear (3a)
Specification	Beyerdynamic DT 900 PRO X	Nothing Ear (3a)

Wearing styleDifferent Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) Manufacturer specification · Two earbuds and a charging case; four pairs of ear tips are in the box. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	Over-ear (circumaural), open-back wired studio headphones	In-ear, true wireless (liquid-silicone ear tips in four sizes)
Weight without cable Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Headphones without cable. beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — official North America store page and technical data beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	345 g	Not provided
Acoustic design Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	Open-back	Not provided
Headband pressure Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	5.3 N	Not provided
Earpads Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	Velour, replaceable; headband pad also replaceable	Not provided
Serviceability Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Product page (Sustainability): 'If required, nearly all the headphones’ components can be replaced'. The spec sheet lists 'Soft, replaceable ear pads and headband pad' and states that the detachable mini-XLR cable can be replaced by cables of different lengths and connection options. beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	Nearly all components replaceable, including ear pads and headband pad	Not provided
Weight per earbud Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification · Each earbud. The charging case weighs 40.92 g. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	Not provided	4.53 g
Dimensions Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Each earbud 31.2 x 21.7 x 24 mm; charging case 64.8 x 48.95 x 22.8 mm (height x width x depth)
Dust, sweat and water resistance Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Nothing's table wording is 'IP54 water and water resistance for buds and case'. · Manufacturer specification Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	Not provided	IP54 (earbuds and case)

Wired / wireless connectionsDifferent Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) Manufacturer specification · The specification lists only Type-C wired charging (full in 70 minutes); no wireless case charging is listed. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	Wired; detachable single-sided cable with 3-pin mini-XLR at the headphone and 3.5 mm stereo jack with 6.35 mm (1/4-inch) adapter	Bluetooth 6.0 (SBC, AAC, LDAC) with dual connection; USB-C charging on the case
Battery lifeDifferent Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Passive headphones with no battery or charging. beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) Manufacturer specification · Nothing laboratory results at 25 °C, 50% volume, AAC, other features at default settings; actual life varies with use. Talk time is listed separately (earbuds 4.5 h ANC on / 6 h ANC off; with case 18 h / 25 h). Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not required: passive wired headphones powered by the audio source	AAC: earbuds up to 6 hours with ANC on and up to 10 hours with ANC off; with the charging case up to 25 hours with ANC on and up to 42 hours with ANC off. LDAC: earbuds up to 4.5 hours ANC on / 6 hours ANC off; with case up to 20 hours ANC on / 28 hours ANC off.
Cable length Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Longest supplied cable; a second 1.8 m straight cable is also included. beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	3 m	Not provided
Supplied plug and adapter Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	3-pin mini-XLR (headphone end); gold-plated 3.5 mm stereo jack with 6.35 mm (1/4-inch) adapter	Not provided
Bluetooth codecs Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	Not provided	SBC, AAC, LDAC (Hi-Res certified)
Multipoint (dual connection) Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification · Dual connection is listed as Yes; Nothing describes dual-device connections on Android, Windows and iOS. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Yes
Low lag mode Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification · Latency can be reduced to as low as 120 ms only when the earbuds are paired with Nothing phones with Game Mode turned on (footnote 3). Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Low lag mode (latency as low as 120 ms)
Quick pairing Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification · Fast Pair works on supported Android devices running Google Play services 11.7+ (back to Android 6.0); Find My and device renaming support need Android 10 or later. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Google Fast Pair and Microsoft Swift Pair
Battery capacity Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Earbuds 55 mAh each; case 500 mAh

Driver constructionDifferent Sources Beyerdynamic DT 900 PRO X Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read. beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) Manufacturer specification Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	Dynamic STELLAR.45 driver	12 mm dynamic driver, 32 Ω, PMI+TPU diaphragm
Nominal impedance Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	48 ohm	Not provided
Rated frequency rangeDifferent Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) Manufacturer specification · Listed as 'RF' under Sound in Nothing's specification table. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	5–40,000 Hz	20 Hz - 40,000 Hz
Rated sensitivity Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Two references are given: per 1 mW and per 1 V, both at 500 Hz. beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	100 dB SPL at 1 mW / 500 Hz; 114 dB SPL at 1 V / 500 Hz	Not provided
Rated total harmonic distortion Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	0.80% at 100 Hz, 0.05% at 500 Hz, 0.04% at 1 kHz (at 1 mW)	Not provided
Maximum input power Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	100 mW short-term; 30 mW rated continuous	Not provided
Spatial audio Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification · Listed under Sound features. Nothing says it spreads sounds across a virtual 3D field; the pages do not mention head tracking. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Static Spatial Audio

MicrophoneDifferent Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Supplied cables end in a stereo headphone jack; no microphone is listed. beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) Manufacturer specification · Three microphones per earbud (six in total) with Clear Voice Technology for calls; the buds also support call recording and Audio Snapshot where available. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	No	Yes
Active noise cancellationDifferent Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Passive, open-back design; no active noise cancellation is listed. beyerdynamic DT 900 PRO X — official product page and technical data (global store) Nothing Ear (3a) Manufacturer specification · Adaptive ANC up to 45 dB (Nothing's laboratory theoretical maximum) over a 40–5000 Hz range, with Transparency Mode. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications	No	Yes

HEADPHONE LAB software Sources Beyerdynamic DT 900 PRO X Manufacturer specification · Free plug-in for DAW software (VST3, AU and AAX for Windows and macOS) with crossfeed and optional room simulation; there is no standalone version. beyerdynamic lists the DT 900 PRO X among the models offered FACTORY CALIBRATION, based on the production measurement data of the individual unit. beyerdynamic DT 900 PRO X — official product page and technical data (global store)beyerdynamic HEADPHONE LAB — plug-in features, formats and FACTORY CALIBRATION model list Nothing Ear (3a) No source recorded.	Supported through a separate DAW plug-in, with individual factory calibration	Not provided
Companion app Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification · Nothing X is for Android 8.0 and above and iOS 13 and above; on Nothing OS 1.5.6 and higher the settings are built into the phone. Custom EQ and Advanced EQ are listed under Sound features. Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Nothing X app: Custom EQ with profile sharing, Advanced EQ (an 8-band equaliser), customisable controls, find my earbuds, dual connection and firmware updates
Controls Sources Beyerdynamic DT 900 PRO X No source recorded. Nothing Ear (3a) Manufacturer specification · Skip forward, skip back and noise control are marked customisable in the Nothing X app; custom controls need to be set up from a phone (footnote 5). Call recording is only available in selected regions (footnote 10). Nothing (UK store, nothing.tech) — Ear (3a) product page with technical specifications Nothing (US store, us.nothing.tech) — Ear (3a) product page with technical specifications	Not provided	Pinch controls on the earbuds: pinch for play/pause or to answer/end a call; double pinch to skip forward or decline a call; triple pinch to skip back; pinch and hold for noise control or volume up/down; double pinch and hold, or pinch both buds at once, for Audio Snapshot or call recording.

In the box Sources Beyerdynamic DT 900 PRO X Manufacturer specification beyerdynamic DT 900 PRO X — spec sheet E1 / DT 900 PRO X (08.21) Nothing Ear (3a) No source recorded.	Headphones, 3 m straight mini-XLR cable, 1.8 m straight mini-XLR cable (each with 3.5 mm jack and 6.35 mm adapter), bag	Not provided

First product manufacturer source Second product manufacturer source

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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.