HEADPHONES · YOUR NEXT FACE-OFF

Sony INZONE Buds vs Sennheiser HD 600

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

Compared products

YOUR FIRST CHOICE

Sony INZONE Buds

White · WFG700NW.CE7 · UK catalogue

Full product profile Official image

Exact model & source notes

Sony’s White INZONE Buds is an active noise-cancelling earbud set with 2.4 GHz supplied USB-C transceiver or compatible Bluetooth 5.3 LE Audio (LC3). The published endurance is retained with its specific connection and codec conditions.

Specifications checked 17 Oct 2026.

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

Manufacturer specifications

WHAT DIFFERS

2 verified differences: Wired / wireless connections and wearing style. Compared in full below. Not a rating.

See the 2 verified differences

THE CONTENDER

Sennheiser HD 600

508824 · grey finish · 300 ohm · standard 3 m stereo cable

Full product profile Official image

Exact model & source notes

The HD 600 is an open-back, over-ear dynamic headphone. Sennheiser describes a 42 mm driver with a 38 mm diaphragm and aluminium voice coils, rated 12–40,500 Hz (−10 dB) at 300 ohms. It has a detachable 3 m cable and replaceable velour ear pads.

Specifications checked 11 Sept 2026.

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

Manufacturer specifications

Sony INZONE Buds UK & US retailers

UK & US price history: no verified listing yet

Sennheiser HD 600 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

Open-back design

Open-back earcups are not sealed. Start here if your listening space is quiet; this construction is not a sound-quality rating.

Sony INZONE BudsNot verified

Sennheiser HD 600Yes

Open-back. Manufacturer specification

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 ↓

2 verified differences, most decision-relevant first. Missing information stays separate.

Wired / wireless connections

Sony INZONE Buds2.4 GHz supplied USB-C transceiver or compatible Bluetooth 5.3 LE Audio (LC3)

Sennheiser HD 600Wired analogue stereo; detachable 3 m cable and supplied adapter support 3.5 mm and 6.35 mm connections

Sources

Sony INZONE Buds

Manufacturer specification · Only positively documented audio modes are listed. A charging connector does not by itself establish USB audio; unlisted codecs or other wireless modes remain unverified.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

Manufacturer specification · Sennheiser's manual and UK page disagree on which plug is native; see Supplied plug configuration.

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

Check the exact configuration and source conditions for your use.

Wearing style

Sony INZONE BudsIn-ear true wireless gaming earbuds

Sennheiser HD 600Over-ear (circumaural), open-back dynamic headphones

Sources

Sony INZONE Buds

Manufacturer specification · Exact model wearing instructions and manufacturer model imagery; earbud/headband scope is not interchanged.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

Manufacturer specification

Sennheiser HD 600 — operating guide and specifications

Check the exact configuration and source conditions for your use.

Missing or non-comparable evidence (34)

Acoustic design

Sony INZONE BudsNot verified

Sennheiser HD 600Open-back

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification

Sennheiser HD 600 — operating guide and specifications

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

Active noise cancellation

Sony INZONE BudsYes

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · The exact model guide names a noise-cancelling headset and documents its noise-cancelling mode. This is presence, not measured attenuation or comparative sound quality.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

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 600 — operating guide and specifications

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

Microphone

In Visual facts

Sony INZONE BudsYes

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · The exact manual documents voice pickup and call or chat controls. No microphone count or measured pickup quality is inferred.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

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 600 — operating guide and specifications

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

Battery life

Sony INZONE Buds2.4 GHz game-and-chat use: up to 11 hours with noise cancelling or Ambient Sound on, or 12 hours with both off. Bluetooth LC3 music: up to 18 hours on, or 24 hours off.

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · Manufacturer full-charge earbud maxima, preserving USB-transceiver gaming and Bluetooth LC3 modes separately. Call-time limits differ; usage conditions affect endurance.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

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 600 — operating guide and specifications

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

Nominal impedance

Sony INZONE BudsNot verified

Sennheiser HD 600300 ohm

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Nominal impedance; check that your amplifier or audio source can drive this load.

Sennheiser HD 600 — operating guide and specifications

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

Driver construction

Sony INZONE BudsNot verified

Sennheiser HD 600Open dynamic 42 mm driver with a 38 mm diaphragm and aluminium voice coils

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Sennheiser gives 42 mm for the driver and 38 mm for its diaphragm; it does not say how the 42 mm figure is measured.

Sennheiser HD 600 — exact model specifications

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

Published acoustic changes

Sony INZONE BudsNot verified

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Sennheiser does not describe an acoustic revision for the HD 600. · Manufacturer specification

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

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

Companion app

Sony INZONE BudsINZONE Hub and Sony | Headphones Connect

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · App names as listed in the retained guide. Functions vary with firmware, compatible device and connection; PC gaming configuration uses INZONE Hub.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Battery capacity

Sony INZONE BudsNot verified

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

The retained exact-model specification does not establish capacity in mAh. Operating voltage is not a charge capacity. · Manufacturer specification

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Battery chemistry

Sony INZONE BudsLithium-ion

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · The exact source names built-in lithium-ion batteries; capacity and user replaceability are not inferred.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

LE Audio required for Bluetooth sound

Sony INZONE BudsYes

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · The guide explicitly says that Bluetooth devices without LE Audio produce no sound even when connected; the USB transceiver is the documented alternative.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Bluetooth version

Sony INZONE Buds5.3

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · The stated version does not establish every optional Bluetooth feature or universal device compatibility.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Included and optional cables

Sony INZONE BudsNot verified

Sennheiser HD 600Detachable 3 m unbalanced cable included; 4.4 mm and XLR-4 balanced cables optional

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Optional cables are sold separately; balanced cables need a balanced headphone output.

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

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

Included cable length

Sony INZONE BudsNot verified

Sennheiser HD 6003 m

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Length of the supplied cable.

Sennheiser HD 600 — operating guide and specifications

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

Charging case full charge time

Sony INZONE Buds3 hours

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · Approximately; charging case only, not an earbud-charge duration.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Charging case weight

Sony INZONE Buds50 g

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · Approximately; charging case only. Selected White model; Glass Purple has separately listed greater masses.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Full charge time

Sony INZONE Buds2 hours

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · Approximately; earbuds only. Charging-case time is listed separately. Actual charging time varies with conditions of use.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Bluetooth codecs

Sony INZONE BudsLC3

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · Positively named supported codecs. Unlisted formats are not marked unsupported. Bluetooth audio specifically requires LE Audio; the exact source explicitly excludes sound on a Bluetooth device without LE Audio.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Supplied plug configuration

Sony INZONE BudsNot verified

Sennheiser HD 600Conflicting evidence

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Sennheiser's manual and UK specification table list a 3.5 mm plug with a 6.35 mm adapter, while the UK page's connection text describes a 6.3 mm plug with a 3.5 mm adapter. Check the listing for the supplied plug. · Manufacturer specification · Needs a matching headphone output; the 4.4 mm balanced cable needs a balanced output.

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

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

Rated contact pressure

Sony INZONE BudsNot verified

Sennheiser HD 600Approximately 6.0 N ±1.0 N

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Nominal clamping force; individual fit and comfort can differ.

Sennheiser HD 600 — operating guide and specifications

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

Rated total harmonic distortion

Sony INZONE BudsNot verified

Sennheiser HD 600≤0.1% at 1 kHz, 1 V rms (DIN 45500)

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Rated to DIN 45500; other models use different test levels, so compare with care.

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

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

Ear pads

Sony INZONE BudsNot verified

Sennheiser HD 600Velour ear pads; replaceable

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Replacement procedure shown in the manual.

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

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

Frequency equalisation

Sony INZONE BudsNot verified

Sennheiser HD 600Diffuse-field equalised

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification

Sennheiser HD 600 — operating guide and specifications

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

Rated frequency range

Sony INZONE BudsNot verified

Sennheiser HD 60012–40,500 Hz (−10 dB)

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification

Sennheiser HD 600 — operating guide and specifications

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

Rated long-term input power

Sony INZONE BudsNot verified

Sennheiser HD 6000.2 W under DIN 45580

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Rated to DIN 45580; the maximum input the headphones can handle, not the amplifier power they need.

Sennheiser HD 600 — operating guide and specifications

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

Static magnetic field at the surface

Sony INZONE BudsNot verified

Sennheiser HD 6001.8 mT

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Static magnetic field at the headphone surface.

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

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

Operating temperature

Sony INZONE BudsNot verified

Sennheiser HD 600−10 °C to +55 °C

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification

Sennheiser HD 600 — operating guide and specifications

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

Rated sensitivity

Sony INZONE BudsNot verified

Sennheiser HD 60097 dB SPL at 1 kHz, 1 V rms

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Rated at 1 kHz with 1 V rms; not directly comparable with dB/mW ratings.

Sennheiser HD 600 — operating guide and specifications

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

Replaceable parts

Sony INZONE BudsNot verified

Sennheiser HD 600Detachable cable and replaceable ear pads

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Replacement procedures are in the manual; spare-part availability varies.

Sennheiser HD 600 — operating guide and specifications

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

Manufacturer sub-bass claim

Sony INZONE BudsNot verified

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Sennheiser makes no sub-bass claim for the HD 600. · Manufacturer specification

Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications

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

Water resistance

Sony INZONE BudsIPX4 equivalent (earbuds)

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · The charging case and USB transceiver are explicitly not water resistant. The headset must not be immersed.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Weight per earbud

Sony INZONE Buds6.5 g

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Manufacturer specification · Approximately per earbud, including medium ear tips; charging case and USB transceiver are separate.

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Wireless charging

Sony INZONE BudsNot verified

Sennheiser HD 600Not verified

Sources

Sony INZONE Buds

Wireless charging capability remains unverified; USB charging does not establish a negative. · Manufacturer specification

Sony INZONE Buds official English Help Guide

Sennheiser HD 600

No source recorded for this side.

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

Weight

Sony INZONE BudsNot verified

Sennheiser HD 600260 g

Sources

Sony INZONE Buds

No source recorded for this side.

Sennheiser HD 600

Manufacturer specification · Approximate, without the cable.

Sennheiser HD 600 — operating guide and specifications

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

Sony INZONE Buds

Select a feature to check your fit.

YOUR CHOICE

Sennheiser HD 600

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

Sony INZONE Buds

What it brings

The supplied USB-C transceiver provides a 2.4 GHz gaming connection for supported PCs, PS5 and USB-C smartphones.
Manufacturer source Manufacturer source
The exact guide documents built-in microphones and separately described music and call or chat modes.
Manufacturer source

What to check

Bluetooth sound requires LE Audio support; the guide says a device without LE Audio produces no sound over Bluetooth even when connected.
Manufacturer source
The manufacturer’s endurance figures are conditional maxima and are not a matched independent battery test.
Manufacturer source

Sennheiser HD 600

What it brings

The detachable 3 m cable and velour ear pads can be replaced, and optional 4.4 mm and XLR-4 balanced cables are available for balanced amplifiers.
Manufacturer source Manufacturer source

What to check

At 300 ohms with a rated 97 dB SPL at 1 kHz / 1 V rms, check that your amplifier or audio source can drive the headphones properly.
Manufacturer source Manufacturer source
The open-back design leaks sound and lets outside noise in. Sennheiser's pages disagree on whether the cable ends in a 3.5 mm or 6.35 mm plug, so check the listing.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

36 of 36 specifications Sources in each row

Source-backed specifications for Sony INZONE Buds and Sennheiser HD 600
Specification	Sony INZONE Buds	Sennheiser HD 600

Wearing styleDifferent Sources Sony INZONE Buds Manufacturer specification · Exact model wearing instructions and manufacturer model imagery; earbud/headband scope is not interchanged. Sony INZONE Buds official English Help Guide Sennheiser HD 600 Manufacturer specification Sennheiser HD 600 — operating guide and specifications	In-ear true wireless gaming earbuds	Over-ear (circumaural), open-back dynamic headphones
Weight per earbud Sources Sony INZONE Buds Manufacturer specification · Approximately per earbud, including medium ear tips; charging case and USB transceiver are separate. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	6.5 g	Not provided
Charging case weight Sources Sony INZONE Buds Manufacturer specification · Approximately; charging case only. Selected White model; Glass Purple has separately listed greater masses. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	50 g	Not provided
Water resistance Sources Sony INZONE Buds Manufacturer specification · The charging case and USB transceiver are explicitly not water resistant. The headset must not be immersed. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	IPX4 equivalent (earbuds)	Not provided
Weight Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Approximate, without the cable. Sennheiser HD 600 — operating guide and specifications	Not provided	260 g
Acoustic design Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification Sennheiser HD 600 — operating guide and specifications	Not provided	Open-back
Replaceable parts Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Replacement procedures are in the manual; spare-part availability varies. Sennheiser HD 600 — operating guide and specifications	Not provided	Detachable cable and replaceable ear pads
Ear pads Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Replacement procedure shown in the manual. Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	Not provided	Velour ear pads; replaceable
Rated contact pressure Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Nominal clamping force; individual fit and comfort can differ. Sennheiser HD 600 — operating guide and specifications	Not provided	Approximately 6.0 N ±1.0 N

Wired / wireless connectionsDifferent Sources Sony INZONE Buds Manufacturer specification · Only positively documented audio modes are listed. A charging connector does not by itself establish USB audio; unlisted codecs or other wireless modes remain unverified. Sony INZONE Buds official English Help Guide Sennheiser HD 600 Manufacturer specification · Sennheiser's manual and UK page disagree on which plug is native; see Supplied plug configuration. Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	2.4 GHz supplied USB-C transceiver or compatible Bluetooth 5.3 LE Audio (LC3)	Wired analogue stereo; detachable 3 m cable and supplied adapter support 3.5 mm and 6.35 mm connections
Battery life Sources Sony INZONE Buds Manufacturer specification · Manufacturer full-charge earbud maxima, preserving USB-transceiver gaming and Bluetooth LC3 modes separately. Call-time limits differ; usage conditions affect endurance. Sony INZONE Buds official English Help Guide Sennheiser HD 600 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 600 — operating guide and specifications	2.4 GHz game-and-chat use: up to 11 hours with noise cancelling or Ambient Sound on, or 12 hours with both off. Bluetooth LC3 music: up to 18 hours on, or 24 hours off.	Not listed by the manufacturer
Battery chemistry Sources Sony INZONE Buds Manufacturer specification · The exact source names built-in lithium-ion batteries; capacity and user replaceability are not inferred. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	Lithium-ion	Not provided
Full charge time Sources Sony INZONE Buds Manufacturer specification · Approximately; earbuds only. Charging-case time is listed separately. Actual charging time varies with conditions of use. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	2 hours	Not provided
Charging case full charge time Sources Sony INZONE Buds Manufacturer specification · Approximately; charging case only, not an earbud-charge duration. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	3 hours	Not provided
Bluetooth codecs Sources Sony INZONE Buds Manufacturer specification · Positively named supported codecs. Unlisted formats are not marked unsupported. Bluetooth audio specifically requires LE Audio; the exact source explicitly excludes sound on a Bluetooth device without LE Audio. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	LC3	Not provided
Bluetooth version Sources Sony INZONE Buds Manufacturer specification · The stated version does not establish every optional Bluetooth feature or universal device compatibility. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	5.3	Not provided
LE Audio required for Bluetooth sound Sources Sony INZONE Buds Manufacturer specification · The guide explicitly says that Bluetooth devices without LE Audio produce no sound even when connected; the USB transceiver is the documented alternative. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	Yes	Not provided
Included cable length Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Length of the supplied cable. Sennheiser HD 600 — operating guide and specifications	Not provided	3 m
Included and optional cables Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Optional cables are sold separately; balanced cables need a balanced headphone output. Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	Not provided	Detachable 3 m unbalanced cable included; 4.4 mm and XLR-4 balanced cables optional

Nominal impedance Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Nominal impedance; check that your amplifier or audio source can drive this load. Sennheiser HD 600 — operating guide and specifications	Not provided	300 ohm
Rated frequency range Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification Sennheiser HD 600 — operating guide and specifications	Not provided	12–40,500 Hz (−10 dB)
Rated sensitivity Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Rated at 1 kHz with 1 V rms; not directly comparable with dB/mW ratings. Sennheiser HD 600 — operating guide and specifications	Not provided	97 dB SPL at 1 kHz, 1 V rms
Driver construction Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Sennheiser gives 42 mm for the driver and 38 mm for its diaphragm; it does not say how the 42 mm figure is measured. Sennheiser HD 600 — exact model specifications	Not provided	Open dynamic 42 mm driver with a 38 mm diaphragm and aluminium voice coils
Frequency equalisation Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification Sennheiser HD 600 — operating guide and specifications	Not provided	Diffuse-field equalised
Rated total harmonic distortion Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Rated to DIN 45500; other models use different test levels, so compare with care. Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	Not provided	≤0.1% at 1 kHz, 1 V rms (DIN 45500)
Rated long-term input power Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Rated to DIN 45580; the maximum input the headphones can handle, not the amplifier power they need. Sennheiser HD 600 — operating guide and specifications	Not provided	0.2 W under DIN 45580

Microphone Sources Sony INZONE Buds Manufacturer specification · The exact manual documents voice pickup and call or chat controls. No microphone count or measured pickup quality is inferred. Sony INZONE Buds official English Help Guide Sennheiser HD 600 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 600 — operating guide and specifications	Yes	Not listed by the manufacturer
Active noise cancellation Sources Sony INZONE Buds Manufacturer specification · The exact model guide names a noise-cancelling headset and documents its noise-cancelling mode. This is presence, not measured attenuation or comparative sound quality. Sony INZONE Buds official English Help Guide Sennheiser HD 600 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 600 — operating guide and specifications	Yes	Not listed by the manufacturer

Companion app Sources Sony INZONE Buds Manufacturer specification · App names as listed in the retained guide. Functions vary with firmware, compatible device and connection; PC gaming configuration uses INZONE Hub. Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	INZONE Hub and Sony \| Headphones Connect	Not provided

Static magnetic field at the surface Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification · Static magnetic field at the headphone surface. Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	Not provided	1.8 mT
Operating temperature Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Manufacturer specification Sennheiser HD 600 — operating guide and specifications	Not provided	−10 °C to +55 °C

Show unverified (5)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 capacity Sources Sony INZONE Buds The retained exact-model specification does not establish capacity in mAh. Operating voltage is not a charge capacity. · Manufacturer specification Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	Not listed by the manufacturer	Not provided
Wireless charging Sources Sony INZONE Buds Wireless charging capability remains unverified; USB charging does not establish a negative. · Manufacturer specification Sony INZONE Buds official English Help Guide Sennheiser HD 600 No source recorded.	Not listed by the manufacturer	Not provided
Supplied plug configuration Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Sennheiser's manual and UK specification table list a 3.5 mm plug with a 6.35 mm adapter, while the UK page's connection text describes a 6.3 mm plug with a 3.5 mm adapter. Check the listing for the supplied plug. · Manufacturer specification · Needs a matching headphone output; the 4.4 mm balanced cable needs a balanced output. Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	Not provided	Conflicting sources
Published acoustic changes Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Sennheiser does not describe an acoustic revision for the HD 600. · Manufacturer specification Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	Not provided	Not listed by the manufacturer
Manufacturer sub-bass claim Sources Sony INZONE Buds No source recorded. Sennheiser HD 600 Sennheiser makes no sub-bass claim for the HD 600. · Manufacturer specification Sennheiser HD 600 — exact model specifications Sennheiser HD 600 — operating guide and specifications	Not provided	Not listed by the manufacturer

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.