Sony WH-CH520 Wireless On-Ear Headphones, Black (WHCH520/B)
Choose the WH-CH520 when low weight, two-device Bluetooth use and infrequent charging matter, provided its on-ear fit suits you. Skip it if you require cable playback, listening while charging or resistance to wet exercise. The useful app and favorable listening impressions support ordinary music use, but they do not replace verified acoustic measurements or a personal fit check.
Updated 2026-10-04
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No price information yet
Conditions and limitations
Battery endurance depends on codec and processing
- Capability
- Manufacturer maximum runtime differs between AAC music, SBC music and communication.
- Limitations
- EQ, DSEE and real use conditions can reduce endurance.
- No independent battery measurement was verified in the accessible snapshots.
- Requirements
- Choose the relevant listening or communication mode and codec.
Charging interrupts listening
- Capability
- USB-C supplies charging power; it is not a route for music playback while charging.
- Limitations
- Plan charging breaks because a flat battery cannot be worked around with a wired audio connection.
- Requirements
- Disconnect the charging cable before resuming playback.
Compatibility
Two-device switching needs correct settings
- Connection
- Enable the app's two-device connection setting and configure the correct computer audio profile.
- Functions
- Switch listening between connected devices
- Use a compatible call profile for computer calls
- Notes
- Sony documents a conditional silent-signal case that can delay switching. Compatibility is not guaranteed for every device and application.
- Protocol
- Bluetooth multipoint; A2DP for music, HFP/HSP for calls
- Result
- partial
- Source device
- Two compatible Bluetooth devices
- Target device
- Sony WH-CH520
Where sources differ
Different listening preferences do not establish a universal tuning verdict
- Explanation
- Different listeners, music and settings were used. No comparable acoustic curves or controlled cross-test protocol were verified, so retain attribution instead of declaring one assessment universally correct.
- Status
- unresolved
Reported issues and fixes
A silent first device can prevent audio switching
- Status
- reported
- Symptom
- The second device is silent after playback stops on the first, because some applications keep sending a silent signal.
- Workaround
- Check the two-device setting, stop playback and close the first device's application, following Sony's troubleshooting sequence.
Care and support
Battery service requires checking with Sony
- Details
- Sony recommends dealer consultation for replacement if endurance falls significantly, plus periodic charging during long storage. This does not establish local service availability or a user-replaceable pack.
Who it suits
Everyday wireless listening with a fit trial
- Check before buying
- Try the on-ear contact during a normal session.
- Check how the non-folding shape fits your bag.
- Constraints
- On-ear fit must be comfortable for your own sessions
- Needs
- Portable listening and adjustable sound
- Reason
- The evidence supports everyday use, while fit remains personal rather than guaranteed by a review.
- Tradeoffs
- Low mass and app controls come with a non-folding plastic design.
- Assessment
- conditional
Sony · Sony · Headphonecheck · HIFI.DE
Mandatory wired listening
- Check before buying
- Check whether your source can transmit compatible Bluetooth audio; do not assume a USB cable is an audio solution.
- Constraints
- A cable connection is essential
- Needs
- Audio from a wired-only source or playback during charging
- Reason
- The required connection is not provided, and charging stops headset operation.
- Tradeoffs
- The USB-C port supplies power rather than audio.
- Assessment
- unsuitable
Wet exercise is outside the documented use limits
- Check before buying
- Choose equipment with documented protection appropriate to the intended activity.
- Constraints
- Moisture exposure and secure sporting fit matter
- Needs
- Headset use in rain or sweat-heavy training
- Reason
- Sony warns against moisture exposure, and the cited fit test did not support sporting use.
- Tradeoffs
- Everyday portability does not establish water protection or sport security.
- Assessment
- unsuitable
Areas not yet researched (1)
No conclusion is available for these areas. This does not mean the Product has no limitations or reported issues.
- Ownership costs
Reviewer consensus
Consensus rows require at least two distinct sources for the topic.
| Topic | Positive | Negative | Mixed | Reading | Evidence |
|---|---|---|---|---|---|
| Amplifier requirements | 1 | 1 | 0 | Debated · 1 v 1 | [3], [7] |
| Comfort & usability | 2 | 1 | 0 | Debated · 2 v 1 | [1], [3], [7] |
| Connectivity and codec support | 2 | 2 | 0 | Debated · 2 v 2 | [2], [6], [8], [7] |
| Sound / experience quality | 2 | 0 | 0 | Agreed · 2/2 | [2], [6] |
| Limitations | 0 | 3 | 0 | Weak point · 3/3 | [5], [2], [4] |
| Repairability | 2 | 0 | 0 | Agreed · 2/2 | [4], [6] |
Single-source notes
The review
Sony WH-CH520: useful wireless flexibility, with fit and charging limits
Start with the listening situation
The WH-CH520 makes the most sense for everyday Bluetooth listening when a light headset and flexible sound settings matter. Sony lists an approximate weight of 147 g, and HIFI.DE's hands-on recommendation centers on portability and battery life with realistic sound expectations. That does not make the on-ear fit automatically right for everyone: try it for the length of session you actually expect to use it. [7], [1], [3]
Headphonecheck found its white test unit comfortable and stable for ordinary movement, but not secure enough for sport. The selected product is black, so those observations are model-family evidence with the tested color disclosed. The plastic design does not fold, and HIFI.DE noted some rattling and no supplied carrying case. Low weight is therefore a packing advantage, not proof of rugged construction. [7], [1], [3]
Sound impressions are useful, but remain subjective
The independent listening impressions are broadly useful without being identical. AVForums enjoyed the presentation and bass control, yet wanted more fine detail. Headphonecheck preferred a modest bass and treble boost over the neutral setting. Treat those as pointers for a listening trial, rather than a promise that your fit, music and preferences will reproduce either reviewer's experience. [1], [2]
Sony's app provides EQ, CLEAR BASS and DSEE controls, so adjustment is a practical part of the ownership experience. It should not be mistaken for evidence of reference-grade reproduction. The manual's A2DP transmission-range specification is not an acoustic response measurement. Verified distortion and isolation measurements were unavailable in this evidence pass, so this article does not assign invented lab results or a noise-blocking guarantee. [7], [6], [2]
Two-device convenience has a specific setup caveat
Bluetooth 5.2 with SBC and AAC is documented by Sony. The companion app can enable a two-device multipoint connection and handle firmware updates. For a desk shared between a phone and computer, that can reduce reconnecting, but it is worth testing with the applications you actually use rather than assuming every device switches identically. [7], [6], [8]
Sony describes a concrete failure case: an application can keep sending silence after playback stops, leaving the second device unheard. Its sequence is to check the two-device setting, stop playback and close the first device's application. Computer music and calls also use different Bluetooth profiles. This is a useful troubleshooting boundary, not evidence that every headset has a fault. HIFI.DE separately found that distinguishing the physical buttons by touch took practice. [8], [3]
Read the battery figures by mode
Sony specifies maximum music runtimes of 50 hours with AAC and 45 hours with SBC, plus up to 40 hours of communication. These are manufacturer figures, not results of a new test. Enabling EQ or DSEE shortens available endurance, and enabling both reduces it further. Your routine therefore matters more than a single headline runtime. [9]
A full charge is specified at approximately 3 hours. The more consequential limit is that the headset stops operating while connected for charging. USB-C is for power, not an audio substitute, and there is no analogue cable input. If you need a headset that can keep playing from a wire when its battery is empty, choose a product that explicitly supports that behavior. [4], [2], [3]
Plan for dry use and battery maintenance
Sony says the WH-CH520 is not waterproof and warns against rain, snow and sweat soaking. Together with the reviewer's sport-fit reservation, that is a reason to look elsewhere for wet training rather than treating light weight as a sports credential. For charging, follow Sony's supplied-cable and compatible-adaptor instructions; a USB hub is not its recommended connection. [4], [5], [1]
The built-in battery also makes local service worth checking before a long-term purchase. Sony recommends dealer consultation if endurance falls significantly and periodic charging during extended storage. Those instructions establish a maintenance route, not a promise of replacement stock, a fixed service charge or a guaranteed support lifetime. Keep those unanswered ownership questions separate from the well-documented day-to-day features. [7], [4], [6]
Alternatives
| Alternative | Where this Product wins | Where it loses | Pick it if |
|---|---|---|---|
| Sennheiser HD 569 Closed-Back Around-Ear Headphones | The WH-CH520's specified 147 g is lighter than the HD 569's published 300 g. This is a mass comparison, not a controlled comfort test. [7] | The HD 569 has a documented 1.2 m cable; the WH-CH520 cannot play audio through a cable. If a wired source is mandatory, Sony's Bluetooth flexibility does not replace that connection. [7], [3] | Choose according to the connection you require and your preferred fit. The Sony favors lightweight wireless use; this limited comparison does not rank acoustic quality or lifetime durability. |
| Specification | Sony WH-CH520 Wireless On-Ear Headphones, Black (WHCH520/B) | Sennheiser HD 569 Closed-Back Around-Ear Headphones |
|---|---|---|
| Weight | 147 g [7] | 300 g |
| Cable Length | Not stated | 1.2 m |
Buyer questions
Before you buy
Will every listening mode last as long?
No. Sony's maximum figures are 50 hours for AAC music, 45 hours for SBC music and 40 hours for communication. Settings and use conditions change endurance; EQ and DSEE reduce it. These are manufacturer limits, not independently measured runtimes in this research. [9]
Compatibility
Setup
Why might the second connected device be silent?
Sony documents that the first device's application can continue transmitting silence. Check that two-device connection is enabled, stop playback and close that first application. Also select the appropriate Bluetooth music or call profile on a computer. [8]
Everyday use
Should I use the app's sound controls?
They are worth trying if the default balance does not suit you. Sony documents EQ, CLEAR BASS and DSEE, while Headphonecheck preferred an EQ adjustment and AVForums still noted detail limits. Adjustment is a preference tool, not proof of a measured acoustic improvement. [6], [1]
Limitations
Is it suitable for rainy or sweat-heavy workouts?
It is not a suitable choice for that requirement. Sony states that it is not waterproof, and Headphonecheck's tester found the fit appropriate for ordinary movement rather than sport. A personal fit trial does not remove the water limitation. [5], [1]
Care and maintenance
What happens when the built-in battery wears down?
Sony advises consulting a Sony dealer when battery endurance drops significantly. The available instructions do not establish a user-swappable battery or guaranteed replacement availability in your region, so check local service options before relying on a repair plan. [4]
Facts and specifications
Manufacturer manual
| Specification | Value | Source |
|---|---|---|
| Battery Life | 40 hours; 45 hours; 50 hours | [9] |
| Battery Type | Built-in rechargeable lithium-ion battery | [7] |
| Bluetooth Codecs | SBC, AAC | [7] |
| Charge Time | 3 hours | [4] |
| Model | WH-CH520 | [7] |
| Paired Devices | 2 | [6] |
| Software | Companion app offers adjustable EQ, CLEAR BASS and DSEE settings; Sony's companion app supports headset software updates | [6] |
| Voltage | 3.7 V; 5 V | [7] |
| Water Resistance | Not waterproof; avoid rain, snow and sweat soaking | [5] |
| Weight | 147 g | [7] |
| Wireless Standard | Bluetooth 5.2 | [7] |
Stated by reviewers
| Specification | Value | Source |
|---|---|---|
| Driver Size | 30 mm | [2] |
| Form Factor | On-ear, non-folding plastic headband design with rotating earcups | [1] |
| Interface | Bluetooth audio only; neither an analogue audio jack nor USB audio playback is available; USB-C for charging only, not audio or data transfer | [2], [3] |
| Materials | Lightweight plastic construction; HIFI.DE observed some rattling when shaken and no included carrying case Germany | [3] |
| Power Source | USB charging; wireless charging is not provided | [2] |
Other facts
| Specification | Value | Source |
|---|---|---|
| Buyer Fit | Headphonecheck's reviewer found the tested white unit comfortable and stable for ordinary movement, but insufficiently secure for sporting activity. This is one person's fit experience rather than a universal fit guarantee.; HIFI.DE recommends the model for ordinary portable listening when small size, low weight and long battery life matter more than highly detailed sound. The review conditions that recommendation on realistic expectations. Germany | [1], [3] |
| Limitation | AVForums found that fine-detail resolution could be better. Buyers seeking analytical listening should not treat its positive overall impression as reference-grade performance.; Sony states that the headset cannot perform music playback, Bluetooth connection or other operations while connected to an outlet or computer for charging. | [4], [2] |
| Risk | Sony documents that some connected devices can continue sending silence after playback stops, preventing multipoint audio from switching to the other device. It is a conditional interoperability issue, not a claim that every unit fails. | [8] |
| Setup Requirement | For this multipoint no-sound case, Sony says to enable the two-device setting, stop playback on the first device and close that device's application. Computer calls require an HFP or HSP connection; music uses A2DP.; Use the supplied USB-C cable with a USB AC adaptor supplying at least 0.5 A, or a running computer's USB port. Sony recommends direct connection rather than a USB hub and does not guarantee every computer or adaptor. | [4], [8] |
KnowSpec analysis
A conditional choice for everyday wireless listening
Choose the WH-CH520 when low weight, two-device Bluetooth use and infrequent charging matter, provided its on-ear fit suits you. Skip it if you require cable playback, listening while charging or resistance to wet exercise. The useful app and favorable listening impressions support ordinary music use, but they do not replace verified acoustic measurements or a personal fit check.
Method: Official maintenance instructions, with unavailable service details kept as gaps.Battery life is a mode-dependent claim
Sony's maximum runtime changes with AAC, SBC and calls, and processing settings reduce it. The operational tradeoff is that charging stops playback. Plan the charging break rather than treating the long advertised endurance as a guarantee of uninterrupted use.
Method: Interpretation of the exact-model Sony runtime and charging instructions.Try the fit and EQ before judging the sound
Headphonecheck's white test unit felt comfortable in ordinary use, while its listener preferred added bass and treble. AVForums was more positive about the balance but still wanted more fine detail. Those are different listening experiences, not a controlled contest. Use the EQ to explore your preference without assuming it makes every fit or recording equivalent.
Method: Comparison of attributed subjective judgments with the official app feature list.Serviceability needs a local check
The battery is built in. Sony advises dealer consultation when its endurance deteriorates substantially and periodic charging during storage. That is useful maintenance guidance, but it does not promise a user-swappable pack, local replacement stock or a particular service life.
Method: Synthesis of official operating limits and attributed hands-on reviews; no new testing.Visible information gaps
Missing information is shown rather than guessed.
- Topic:Frequency Responsenot public
- Topic:Battery Lifenot public
- Sensitivitynot found
- Topic:Distortionnot public
- Impedancenot found
- Topic:Repairabilitynot found
- Topic:Isolation And Leakagenot public
- Noise Cancellingnot public
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Sources and method
- Sony WH-CH520 ReviewHeadphonecheck · retrieved 2026-10-04Editorial review
- Sony WH-CH520 Wireless On-Ear Headphones ReviewAVForums · retrieved 2026-10-04Editorial review
- Sony WH-CH520 im TestHIFI.DE · retrieved 2026-10-04Editorial review
- WH-CH520 Help Guide: Charging the headsetSony · retrieved 2026-10-04Manual
- WH-CH520 Help Guide: To prevent burning or malfunction due to getting wetSony · retrieved 2026-10-04Manual
- WH-CH520 Help Guide: What you can do with the Sony Headphones Connect appSony · retrieved 2026-10-04Manual
- WH-CH520 Help Guide: SpecificationsSony · retrieved 2026-10-04Manual
- WH-CH520 Help Guide: No soundSony · retrieved 2026-10-04Manufacturer support
- WH-CH520 Help Guide: Available operating timeSony · retrieved 2026-10-04Manual