HEADPHONES · YOUR NEXT FACE-OFF

Sennheiser ACCENTUM Plus Wireless vs Sennheiser HD 280 PRO

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

Compared products

YOUR FIRST CHOICE

Sennheiser ACCENTUM Plus Wireless

700176 · Black · model ACPAEBT

Full product profile Official image

Exact model & source notes

The ACCENTUM Plus Wireless (article 700176, black) is Sennheiser's closed-back, around-ear Bluetooth 5.2 headphone with hybrid adaptive noise cancellation, an adjustable Transparency Mode, touch controls with Smart Pause, a fold-flat design, an angled 37 mm dynamic driver and a rated 50 hours of playback with ANC on. Sennheiser's app adds a 5-band equalizer, sound modes and Sound Personalization. Besides Bluetooth it plays over USB-C from a computer or phone, and over a supplied analogue cable.

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 ACCENTUM Plus Wireless for

Both wired and wireless connections
Higher stated rated impedance: 95 ohm vs 64 ohm

Choose the HD 280 PRO for

Lower stated rated impedance: 64 ohm vs 95 ohm

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

See the 7 verified differences

THE CONTENDER

Sennheiser HD 280 PRO

506845 · HD 280 PRO · wired

Full product profile Official image

Exact model & source notes

The HD 280 PRO (article 506845) is Sennheiser's closed-back wired monitoring headphone for recording, mixing and monitoring, built from rugged polycarbonate with a collapsible, fold-down design. It has a rated 64 Ω impedance, up to 32 dB of passive ambient-noise attenuation and a single-sided coiled cable with a 3.5 mm plug and 6.3 mm adapter. It weighs about 285 g without the cable.

Specifications checked 26 Sept 2026.

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

Manufacturer specifications

ACCENTUM Plus Wireless UK & US retailers

UK & US price history: no verified listing yet

HD 280 PRO 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 SIDE7 topics

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

SELECTED TOPIC

01 / 07

Impedance

Nominal electrical load, not sound quality or loudness. Output capability and headphone sensitivity matter together; impedance alone cannot decide whether an amplifier is needed.

Sennheiser ACCENTUM Plus Wireless95 Ω

Manufacturer specification · Passive (cable) mode; the page lists 560 ohms in active mode.

Source 1

Sennheiser HD 280 PRO64 Ω

Source 1 Source 2

Explore the full specifications

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

Sennheiser ACCENTUM Plus WirelessBluetooth 5.2 (SBC, AAC, aptX, aptX Adaptive); USB-C for charging and streaming from a PC/Mac/mobile device; 2.5 mm analogue input with supplied 2.5 mm-to-3.5 mm cable

Sennheiser HD 280 PROWired; single-sided coiled cable (about 1.3 m to 3 m) with 3.5 mm plug and supplied 6.3 mm adapter

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Connecting the analogue cable switches Bluetooth off (flight mode).

Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

Manufacturer specification

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)

Check the exact configuration and source conditions for your use.

Rated impedance

In Visual facts

Sennheiser ACCENTUM Plus Wireless95 ohm

Sennheiser HD 280 PRO64 ohm

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Passive (cable) mode; the page lists 560 ohms in active mode.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications

Sennheiser HD 280 PRO

Manufacturer specification

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)

Check the exact configuration and source conditions for your use.

Driver construction

Sennheiser ACCENTUM Plus Wireless37 mm dynamic transducer, angled

Sennheiser HD 280 PRODynamic

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Sennheiser says the angled transducers create a wider soundstage.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

Manufacturer specification · Sennheiser does not state the transducer diameter on the pages read.

Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)

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

Rated total harmonic distortion

Sennheiser ACCENTUM Plus Wireless<0.3% at 1 kHz, 100 dB SPL

Sennheiser HD 280 PRO<0.1% at 1 kHz, 100 dB SPL

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification

Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

Manufacturer specification · The quick guide gives the measurement conditions; the specification sheet gives 0.1% without them.

Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)

These published limits can use different input voltages, loudness levels and standards. They cannot establish lower distortion in matched listening conditions.

Rated frequency range

Sennheiser ACCENTUM Plus Wireless10–22,000 Hz (−10 dB)

Sennheiser HD 280 PRO8 Hz–25 kHz

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification

Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

Manufacturer specification · No level tolerance is stated.

Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)

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

In the box

Sennheiser ACCENTUM Plus WirelessHeadphones, USB-C to USB-A cable (approx. 1.2 m), 2.5 mm-to-3.5 mm audio cable (approx. 1.2 m), carry case, quick guide, safety guide, compliance sheet

Sennheiser HD 280 PROHD 280 PRO headphones, 3.5 mm to 6.3 mm adapter, safety guide

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification

Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

Manufacturer specification

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)

Check the exact configuration and source conditions for your use.

Show 1 more verified difference

Weight

Sennheiser ACCENTUM Plus Wireless227 g

Sennheiser HD 280 PRO285 g

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Approximate, headphones only; no cable-inclusive figure is published.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

Manufacturer specification · Approximate, without cable.

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)

A size or weight trade-off; it does not establish the better product.

Configuration & compatibility details (1)

Wearing style

Sennheiser ACCENTUM Plus WirelessOver-ear (circumaural), closed-back wireless headphones with a fold-flat design

Sennheiser HD 280 PROOver-ear (circumaural), closed-back wired monitoring headphones

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Sennheiser's US store description: 'Fold-flat Design: Free swiveling hinges and hidden extensions allows for on-the-go portability and easy storage.' The UK specification table gives the dimensions as approx. 16,5 x 19,5 x 4,8 (folded flat), without a unit.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser US store — ACCENTUM Plus Wireless product variant data (SKU and barcode per colour)Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

Manufacturer specification · Sennheiser's product page states 'Circumaural (over-ear) fit' in its feature list and 'a circumaural fit' in its comfort copy, and the specification sheet and quick guide both give 'Ear coupling circumaural'; the same product page's technical table alone lists 'Wearing style On-ear'. That single table entry is disclosed here rather than published as the wearing style.

Both sources describe the same wearing style and acoustic design in different words. The extra wording does not establish a different fit; compare the separately listed fields.

Missing or non-comparable evidence (18)

Active noise cancellation

Sennheiser ACCENTUM Plus WirelessYes

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Hybrid adaptive ANC.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)

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

Microphone

In Visual facts

Sennheiser ACCENTUM Plus WirelessYes

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · MEMS beamforming microphones for calls. The manual states four microphones in a 2x2 array; the UK product page states 2 mics.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

The reviewed exact sources do not explicitly establish microphone absence. Omission from a package or technical inventory, a stereo audio connector, and a without-remote statement do not establish microphone=false. · Manufacturer specification

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)

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

Battery life

Sennheiser ACCENTUM Plus WirelessUp to 50 hours of Bluetooth music playback with ANC on; approx. 3.5 hours to charge fully, with 10 minutes giving up to 5 hours

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Sennheiser's test condition on the UK page: iPhone at medium volume. Both sources describe the battery as built in.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. · Manufacturer specification

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data

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

App sound controls

Sennheiser ACCENTUM Plus WirelessSennheiser Smart Control Plus app: built-in 5-band equalizer, sound modes and Sound Personalization; adjustable ANC and Transparency Mode intensity

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Requires the Sennheiser app on a smartphone connected over Bluetooth; the manual refers to it as the Smart Control app.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Battery

Sennheiser ACCENTUM Plus WirelessConflicting evidence

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

The instruction manual states a built-in lithium-ion battery of 700 mAh (2.96 Wh); the UK product page states 800 mAh. Neither is preferred. · Manufacturer specification

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Bluetooth codecs

Sennheiser ACCENTUM Plus WirelessSBC, AAC, aptX, aptX Adaptive (plus mSBC and CVSD for calls)

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Cable length

Sennheiser ACCENTUM Plus WirelessNot verified

Sennheiser HD 280 PRO3 m

Sources

Sennheiser ACCENTUM Plus Wireless

No source recorded for this side.

Sennheiser HD 280 PRO

Manufacturer specification · Coiled cable: about 1.3 m relaxed, extending to a maximum of 3 m.

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)

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

Charging

Sennheiser ACCENTUM Plus WirelessUSB-C, 5 V up to 700 mA; approx. 3.5 hours for a full charge

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Contact pressure

Sennheiser ACCENTUM Plus WirelessNot verified

Sennheiser HD 280 PROApprox. 6 N

Sources

Sennheiser ACCENTUM Plus Wireless

No source recorded for this side.

Sennheiser HD 280 PRO

Manufacturer specification

Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)

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

Controls and sensors

Sennheiser ACCENTUM Plus WirelessTouch pad on the right ear cup (tap, slide, swipe) and a multi-function button; Smart Pause pauses audio when the headphones are taken off; automatic anti-wind mode

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · The touch pad function can be deactivated.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Construction

Sennheiser ACCENTUM Plus WirelessNot verified

Sennheiser HD 280 PRORugged polycarbonate construction; collapsible design that folds down for storage

Sources

Sennheiser ACCENTUM Plus Wireless

No source recorded for this side.

Sennheiser HD 280 PRO

Manufacturer specification

Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data

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

Sound pressure level

Sennheiser ACCENTUM Plus WirelessNot verified

Sennheiser HD 280 PRO113 dB

Sources

Sennheiser ACCENTUM Plus Wireless

No source recorded for this side.

Sennheiser HD 280 PRO

Manufacturer specification · No measurement reference is stated.

Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)

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

Simultaneous Bluetooth connections

Sennheiser ACCENTUM Plus Wireless2

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification

Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Operating temperature

Sennheiser ACCENTUM Plus Wireless0 °C to +40 °C

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification

Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Ambient noise attenuation

Sennheiser ACCENTUM Plus WirelessNot verified

Sennheiser HD 280 PROUp to 32 dB (passive)

Sources

Sennheiser ACCENTUM Plus Wireless

No source recorded for this side.

Sennheiser HD 280 PRO

Manufacturer specification

Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)

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

Rated sensitivity

Sennheiser ACCENTUM Plus Wireless106 dB SPL (1 kHz, 0 dBFS)

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Digital full-scale reference; not comparable with passive headphones' dB/mW or dB/V ratings.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

Serviceability

Sennheiser ACCENTUM Plus WirelessNot verified

Sennheiser HD 280 PROFolding, rotating ear cups; ear cushions and headband padding are replaceable spare parts

Sources

Sennheiser ACCENTUM Plus Wireless

No source recorded for this side.

Sennheiser HD 280 PRO

Manufacturer specification

Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)

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

Transparency (ambient) mode

Sennheiser ACCENTUM Plus WirelessYes

Sennheiser HD 280 PRONot verified

Sources

Sennheiser ACCENTUM Plus Wireless

Manufacturer specification · Switched by touch-pad gesture; the Smart Control app adjusts the intensity of Transparency Mode and ANC. The manual states the switch is not available during an active call.

Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual

Sennheiser HD 280 PRO

No source recorded for this side.

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

1 shared field has 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

Sennheiser ACCENTUM Plus Wireless

Select a feature to check your fit.

YOUR CHOICE

Sennheiser HD 280 PRO

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

Sennheiser ACCENTUM Plus Wireless

What it brings

Sennheiser rates up to 50 hours of Bluetooth playback with ANC on, and 10 minutes of charging for up to 5 hours of music.
Manufacturer source Manufacturer source
It keeps wired options: USB-C audio from a Mac, PC or mobile device, and a 2.5 mm analogue input with a 3.5 mm cable in the box.
Manufacturer source
Sennheiser rates the headphones at about 227 g, a figure both the manual and the UK page agree on.
Manufacturer source Manufacturer source

What to check

A full charge takes about 3.5 hours, and the battery is built in.
Manufacturer source Manufacturer source
Sennheiser's manual and UK page disagree on battery capacity (700 versus 800 mAh) and microphone count (four versus two), so those details are shown with both figures.
Manufacturer source Manufacturer source
Codec support stops at aptX Adaptive; aptX HD and aptX Lossless are not listed.
Manufacturer source

Sennheiser HD 280 PRO

What it brings

The closed design is rated for up to 32 dB of passive ambient-noise attenuation for recording and monitoring.
Manufacturer source Manufacturer source Manufacturer source
Ear cushions and headband padding are listed as replaceable spare parts, and the ear cups fold and rotate for transport.
Manufacturer source Manufacturer source

What to check

The single-sided coiled cable stretches from about 1.3 m to 3 m. Sennheiser's documents do not describe it as detachable, and the product page's spare parts list only a 6.3 mm adapter and a pad set, with no replacement cable.
Manufacturer source Manufacturer source
Sennheiser does not state the transducer diameter; the supplied cable uses a 3.5 mm plug with a 6.3 mm adapter.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

27 of 27 specifications Sources in each row

Source-backed specifications for Sennheiser ACCENTUM Plus Wireless and Sennheiser HD 280 PRO
Specification	Sennheiser ACCENTUM Plus Wireless	Sennheiser HD 280 PRO

Wearing styleDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Sennheiser's US store description: 'Fold-flat Design: Free swiveling hinges and hidden extensions allows for on-the-go portability and easy storage.' The UK specification table gives the dimensions as approx. 16,5 x 19,5 x 4,8 (folded flat), without a unit. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser US store — ACCENTUM Plus Wireless product variant data (SKU and barcode per colour)Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification · Sennheiser's product page states 'Circumaural (over-ear) fit' in its feature list and 'a circumaural fit' in its comfort copy, and the specification sheet and quick guide both give 'Ear coupling circumaural'; the same product page's technical table alone lists 'Wearing style On-ear'. That single table entry is disclosed here rather than published as the wearing style. Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	Over-ear (circumaural), closed-back wireless headphones with a fold-flat design	Over-ear (circumaural), closed-back wired monitoring headphones
WeightDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Approximate, headphones only; no cable-inclusive figure is published. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification · Approximate, without cable. Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	227 g	285 g
Acoustic design Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	Closed-back	Closed-back
Contact pressure Sources Sennheiser ACCENTUM Plus Wireless No source recorded. Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	Not provided	Approx. 6 N
Construction Sources Sennheiser ACCENTUM Plus Wireless No source recorded. Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data	Not provided	Rugged polycarbonate construction; collapsible design that folds down for storage
Serviceability Sources Sennheiser ACCENTUM Plus Wireless No source recorded. Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	Not provided	Folding, rotating ear cups; ear cushions and headband padding are replaceable spare parts

Wired / wireless connectionsDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Connecting the analogue cable switches Bluetooth off (flight mode). Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)	Bluetooth 5.2 (SBC, AAC, aptX, aptX Adaptive); USB-C for charging and streaming from a PC/Mac/mobile device; 2.5 mm analogue input with supplied 2.5 mm-to-3.5 mm cable	Wired; single-sided coiled cable (about 1.3 m to 3 m) with 3.5 mm plug and supplied 6.3 mm adapter
Battery life Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Sennheiser's test condition on the UK page: iPhone at medium volume. Both sources describe the battery as built in. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. · Manufacturer specification Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data	Up to 50 hours of Bluetooth music playback with ANC on; approx. 3.5 hours to charge fully, with 10 minutes giving up to 5 hours	Not listed by the manufacturer
Bluetooth codecs Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	SBC, AAC, aptX, aptX Adaptive (plus mSBC and CVSD for calls)	Not provided
Simultaneous Bluetooth connections Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	2	Not provided
Charging Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	USB-C, 5 V up to 700 mA; approx. 3.5 hours for a full charge	Not provided
Cable length Sources Sennheiser ACCENTUM Plus Wireless No source recorded. Sennheiser HD 280 PRO Manufacturer specification · Coiled cable: about 1.3 m relaxed, extending to a maximum of 3 m. Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)	Not provided	3 m

Driver constructionDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Sennheiser says the angled transducers create a wider soundstage. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification · Sennheiser does not state the transducer diameter on the pages read. Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)	37 mm dynamic transducer, angled	Dynamic
Rated frequency rangeDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification · No level tolerance is stated. Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	10–22,000 Hz (−10 dB)	8 Hz–25 kHz
Rated sensitivity Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Digital full-scale reference; not comparable with passive headphones' dB/mW or dB/V ratings. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	106 dB SPL (1 kHz, 0 dBFS)	Not provided
Rated impedanceDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Passive (cable) mode; the page lists 560 ohms in active mode. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)	95 ohm	64 ohm
Rated total harmonic distortionDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification · The quick guide gives the measurement conditions; the specification sheet gives 0.1% without them. Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	<0.3% at 1 kHz, 100 dB SPL	<0.1% at 1 kHz, 100 dB SPL
Sound pressure level Sources Sennheiser ACCENTUM Plus Wireless No source recorded. Sennheiser HD 280 PRO Manufacturer specification · No measurement reference is stated. Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)	Not provided	113 dB

Microphone Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · MEMS beamforming microphones for calls. The manual states four microphones in a 2x2 array; the UK product page states 2 mics. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO The reviewed exact sources do not explicitly establish microphone absence. Omission from a package or technical inventory, a stereo audio connector, and a without-remote statement do not establish microphone=false. · Manufacturer specification Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)	Yes	Not listed by the manufacturer
Active noise cancellation Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Hybrid adaptive ANC. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	Yes	Not listed by the manufacturer
Transparency (ambient) mode Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Switched by touch-pad gesture; the Smart Control app adjusts the intensity of Transparency Mode and ANC. The manual states the switch is not available during an active call. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	Yes	Not provided
Ambient noise attenuation Sources Sennheiser ACCENTUM Plus Wireless No source recorded. Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO — quick guide (04/16, 566630/A02)	Not provided	Up to 32 dB (passive)

App sound controls Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · Requires the Sennheiser app on a smartphone connected over Bluetooth; the manual refers to it as the Smart Control app. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	Sennheiser Smart Control Plus app: built-in 5-band equalizer, sound modes and Sound Personalization; adjustable ANC and Transparency Mode intensity	Not provided
Controls and sensors Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification · The touch pad function can be deactivated. Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	Touch pad on the right ear cup (tap, slide, swipe) and a multi-function button; Smart Pause pauses audio when the headphones are taken off; automatic anti-wind mode	Not provided

In the boxDifferent Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO Manufacturer specification Sennheiser HD 280 PRO (article 506845) — official UK product page and technical data Sennheiser HD 280 PRO — product specification sheet (EN, V1.0)	Headphones, USB-C to USB-A cable (approx. 1.2 m), 2.5 mm-to-3.5 mm audio cable (approx. 1.2 m), carry case, quick guide, safety guide, compliance sheet	HD 280 PRO headphones, 3.5 mm to 6.3 mm adapter, safety guide

Operating temperature Sources Sennheiser ACCENTUM Plus Wireless Manufacturer specification Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	0 °C to +40 °C	Not provided

Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
Battery Sources Sennheiser ACCENTUM Plus Wireless The instruction manual states a built-in lithium-ion battery of 700 mAh (2.96 Wh); the UK product page states 800 mAh. Neither is preferred. · Manufacturer specification Sennheiser ACCENTUM Plus Wireless — official UK product page and specifications Sennheiser ACCENTUM Plus (ACPAEBT) — instruction manual Sennheiser HD 280 PRO No source recorded.	Conflicting sources	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.