{"data":{"slug":"sony-wh-ch520","type":"headset","brand":"Sony","name":"WH-CH520","aliases":[],"release_date":"2023-03","url":"https://arkivo.dev/headsets/sony-wh-ch520","specs":{"series":null,"model_numbers":["YY2958"],"gtins":["027242925205"],"announce_date":"2023-02-21","status":null,"predecessor":null,"successor":"sony-wh-ch530","launch_price_usd":59.99,"launch_price_eur":70,"markets":["US"],"colors":["Pink","Yellow","Blue","Beige","White","Black","One Piece Black","One Piece White"],"manufacturer_url":"https://www.sony.co.uk/headphones/products/wh-ch520","spec_sheet_url":"https://www.sony.jp/headphone/products/WH-CH520/spec.html","manual_url":"https://helpguide.sony.net/mdr/2958/v1/en/print.pdf","eprel_registration_number":null,"warranty_years":1,"segment":"music","form_factor":"on_ear","back_type":"closed","wearing_style":"headband","foldable":"flat","ear_cups_swivel":true,"rgb_lighting":null,"lighting_zones":null,"driver_type":"dynamic","driver_size_mm":30,"drivers_per_side":1,"driver_diaphragm_material":null,"driver_magnet":null,"frequency_response_hz":null,"frequency_response_wireless_hz":{"min_hz":20,"max_hz":20000},"impedance_ohm":null,"sensitivity_db":null,"sensitivity_reference":null,"thd_pct":null,"max_input_power_mw":null,"max_sample_rate_khz":null,"max_bit_depth_bits":null,"dac_chip":null,"sound_personalization":null,"onboard_eq":true,"eq_bands":5,"eq_presets":null,"volume_limit_db":null,"virtual_surround":["360 Reality Audio"],"spatial_audio_licence_included":null,"head_tracking":null,"anc":false,"anc_type":null,"anc_mic_count":null,"anc_adaptive":null,"anc_levels":null,"anc_claimed_attenuation_db":null,"transparency_mode":false,"transparency_adjustable":null,"conversation_detection":null,"wind_noise_reduction":null,"measured_frequency_response_notes":"With an ideal fit, bass and lower mids are emphasized. Other midrange harmonics are quieter. A broken seal reduces bass and makes mids and highs more prominent.","measured_bass_amount_db":null,"measured_treble_amount_db":null,"measured_target_deviation_db":null,"measured_response_consistency_db":null,"measured_thd_pct":null,"measured_leakage_db_spl":null,"measured_noise_isolation":null,"measured_attenuation_overall_db":null,"measured_attenuation_passive_db":null,"measured_microphone_notes":"Voices are clear but can sound thin. The microphone separates speech from moderate background noise. Loud environments can overpower the voice.","measured_microphone_lfe_hz":null,"measured_microphone_hfe_hz":null,"measured_microphone_noise_handling_db":null,"measured_latency":[{"connection":"bluetooth","platform":null,"codec":null,"latency_ms":224}],"measured_latency_bluetooth_ms":224,"measured_latency_2_4ghz_ms":null,"measured_battery_life":[{"connection":"bluetooth","anc":null,"lighting":null,"hours":59},{"connection":"bluetooth","anc":null,"lighting":null,"hours":55.416666666666664}],"measured_battery_life_h":59,"measured_clamping_force_n":null,"measured_weight_g":147,"microphone_type":"built_in","microphone_element":null,"microphone_pattern":null,"microphone_count":1,"microphone_count_total":null,"microphone_frequency_response_hz":null,"microphone_sensitivity_db":null,"microphone_snr_db":null,"microphone_sample_rate_khz":null,"microphone_noise_reduction":"dsp","flip_to_mute":null,"mute_button":null,"mute_indicator":null,"sidetone":true,"sidetone_adjustable":null,"mic_windscreen":null,"connection_types":["bluetooth"],"analog_connectors":null,"cable_connector_headset_side":null,"cable_length_m":0.2,"usb_connector":"usb_c","usb_c_audio":false,"passive_wired_listening":false,"wireless_receiver":"none","receiver_connector":null,"wireless_range_m":10,"bluetooth_version":"5.2","bluetooth_codecs":["SBC","AAC"],"bluetooth_le_audio":null,"auracast":null,"multipoint":true,"multipoint_device_count":2,"paired_device_memory":8,"simultaneous_2_4ghz_bluetooth":null,"fast_pair":["google_fast_pair","microsoft_swift_pair"],"base_station":null,"low_latency_mode":null,"latency_claimed":null,"compatible_platforms":["android","ios","windows","macos"],"platform_connections":[{"platform":"android","connection":"bluetooth","microphone_works":true},{"platform":"ios","connection":"bluetooth","microphone_works":true},{"platform":"windows","connection":"bluetooth","microphone_works":true},{"platform":"macos","connection":"bluetooth","microphone_works":true}],"official_license":null,"battery_capacity_mah":null,"swappable_battery":null,"battery_count":null,"battery_life_claimed":[{"connection":"bluetooth","anc":null,"codec":null,"spatial_audio":null,"lighting":null,"hours":50}],"battery_life_max_h":50,"battery_life_anc_on_h":null,"battery_life_anc_off_h":null,"charging_port":"usb_c","charge_time_0_100_min":180,"quick_charge_min":3,"quick_charge_playback_h":1.5,"play_while_charging":false,"charging_dock":null,"control_types":["buttons"],"volume_control":"buttons","game_chat_mix":null,"customizable_controls":null,"wear_detection":null,"voice_assistant":["Google app","Siri"],"headband_type":"padded","headband_material":null,"frame_material":null,"ear_cup_material":"Plastic","earpad_material":null,"earpad_replaceable":true,"earpad_attachment":null,"earpad_inner_dimensions_mm":null,"ear_tip_sizes":null,"ip_rating":null,"user_replaceable_parts":["Ear pads"],"companion_app":"Sony | Sound Connect","companion_app_platforms":["android","ios"],"firmware_updatable":true,"weight_g":147,"dimensions_mm":null,"hi_res_audio":null,"communication_certifications":null,"fcc_id":"AK8YY2958","other_certifications":null,"in_the_box":["Wireless Stereo Headset","USB Type-C cable (USB-A to USB-C)"],"cables_included":[{"type":"USB-A to USB-C charging cable","length_m":0.2,"count":1}],"carrying_case":"none"},"variants":[],"sources":[{"url":"https://helpguide.sony.net/mdr/2958/v1/en/print.pdf","kind":"manual","accessed":"2026-10-05","fields":["model_numbers","manual_url","wearing_style","microphone_type","connection_types","usb_connector","usb_c_audio","bluetooth_version","bluetooth_codecs","wireless_range_m","frequency_response_wireless_hz","multipoint","multipoint_device_count","paired_device_memory","charging_port","charge_time_0_100_min","play_while_charging","companion_app","companion_app_platforms","firmware_updatable","compatible_platforms","weight_g","sidetone"],"notes":{"model_numbers":"Guide cover explicitly identifies the regulatory model.","manual_url":"Official complete English help guide.","wearing_style":"Parts and controls, pages 9-10, labels headband and left/right units.","microphone_type":"Parts and controls, pages 9-10, identifies integrated voice/call microphone.","connection_types":"Bluetooth setup chapters for Android, iPhone, Windows and Mac. Analog playback added separately only where the guide proves it.","usb_connector":"Parts and controls, pages 9-10, USB Type-C charging port.","usb_c_audio":"Charging, pages 15-16: music playback and Bluetooth operations cannot be performed while connected to USB power. The USB port is for charging.","bluetooth_version":"Specifications chapter, communication system: Bluetooth 5.2.","bluetooth_codecs":"Specifications chapter: exact supported A2DP codecs, not Bluetooth version capabilities.","wireless_range_m":"Specifications: approximate 10 m line-of-sight. Obstacles and host conditions affect range.","frequency_response_wireless_hz":"Specifications: A2DP transmission range at 44.1 kHz sampling. This is not acoustic driver response.","multipoint":"Connecting the headset to 2 devices simultaneously chapter. Streams switch, rather than mix.","multipoint_device_count":"Connecting the headset to 2 devices simultaneously chapter, two Bluetooth source devices.","paired_device_memory":"Android pairing, page 25: up to eight paired devices. The oldest registration is replaced when another is paired.","charging_port":"Charging, pages 15-16: supplied USB-A to USB-C cable.","charge_time_0_100_min":"Charging, pages 15-16: approximate time explicitly defined as empty battery to full capacity. Hours converted to minutes.","play_while_charging":"Charging, pages 15-16: connecting USB power turns the headset off and prevents music playback. Passive cable use is not claimed here.","companion_app":"App chapter page 84. Headphones Connect was renamed Sound Connect in October 2024, as shown on the current guide landing page or maker product page.","companion_app_platforms":"Installing the app chapter: Google Play and Apple App Store smartphone apps.","firmware_updatable":"App capabilities page 84: update headset software.","compatible_platforms":"Individual Bluetooth setup chapters explicitly name Android, iPhone, Windows and Mac. No console path inferred.","weight_g":"Specifications: approximate published mass. Detachable cable inclusion is not stated in this guide.","sidetone":"Guide pages 72 and 74 explicitly own voice heard through headset microphone during Bluetooth phone calls. Page 82 also states sidetone during Siri. Adjustment not published."}},{"url":"https://helpguide.sony.net/mdr/2958/v1/en/print.pdf","kind":"manual","accessed":"2026-10-05","fields":["battery_life_claimed","quick_charge_min","quick_charge_playback_h","control_types","volume_control","virtual_surround","cable_length_m","in_the_box","cables_included"],"notes":{"battery_life_claimed":"Page 17: AAC continuous music 50 h. SBC 45 h is left in notes because table has no codec column. EQ and DSEE shorten runtime. Call 40 h is not playback. ANC not applicable and omitted.","quick_charge_min":"Page 17: 3 minutes charging.","quick_charge_playback_h":"Page 17: about 1.5 h music playback after 3 minutes. Codec unspecified.","control_types":"Pages 9-10 parts list and playback chapter: three multifunction volume/playback/power buttons.","volume_control":"Pages 9-10 volume +/- buttons.","virtual_surround":"Page 84 app 360 Reality Audio setup for supported services. Not a bundled paid licence.","cable_length_m":"Page 8: sole included cable is approximately 20 cm USB cable.","in_the_box":"Page 8 package list, no headphone audio cable.","cables_included":"Page 8: one USB-A to USB-C cable, approximate 20 cm."}},{"url":"https://www.sony.jp/headphone/products/WH-CH520/spec.html","kind":"manufacturer_page","accessed":"2026-10-05","fields":["driver_type","driver_size_mm","back_type"],"notes":{"driver_type":"Headphone unit type: closed dynamic.","driver_size_mm":"Driver unit 30 mm.","back_type":"Headphone unit type: closed dynamic."}},{"url":"https://www.sony.co.uk/headphones/products/wh-ch520/spec","kind":"manufacturer_page","accessed":"2026-10-05","fields":["manufacturer_url","passive_wired_listening","transparency_mode","colors"],"notes":{"manufacturer_url":"Public indexed maker specification cells. Direct fetch intermittently unavailable. Exact current model spec page links to product page.","passive_wired_listening":"Public indexed maker specification cells. Direct fetch intermittently unavailable. General Features: Passive Operation No, Inputs No.","transparency_mode":"Public indexed maker specification cells. Direct fetch intermittently unavailable. General Features: Ambient Sound Mode No.","colors":"Public indexed maker specification cells. Direct fetch intermittently unavailable. Current UK spec color table including limited One Piece variants. No color-to-SKU mapping inferred."}},{"url":"https://www.sony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphones","kind":"press_release","accessed":"2026-10-05","fields":["announce_date","segment","form_factor","headband_type","microphone_noise_reduction","fast_pair","voice_assistant"],"notes":{"announce_date":"Dated manufacturer release.","segment":"Introduction music listening on-ear headphones.","form_factor":"Introduction explicitly on-ear.","headband_type":"Comfort: adjustable headband with padding.","microphone_noise_reduction":"Call section explicitly noise suppression processing. AI not claimed.","fast_pair":"Both models Swift Pair and Fast Pair.","voice_assistant":"Footnote 2: press play/call button to activate Google or Siri, not wake-word activation."}},{"url":"https://www.sony.co.uk/headphones/products/wh-ch520","kind":"manufacturer_page","accessed":"2026-10-05","fields":["ear_cups_swivel","companion_app"],"notes":{"ear_cups_swivel":"Designed for all-day comfort: swivel earcups.","companion_app":"Current product EQ features name Sony Sound Connect."}},{"url":"https://www.lesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.html","kind":"review_site","accessed":"2026-10-05","fields":["release_date","measured_weight_g","measured_battery_life","measured_latency","microphone_count","carrying_case"],"notes":{"release_date":"Price and availability explicitly says released in March 2023 at EUR 70. Confirms past retail month, not the February announcement.","measured_weight_g":"Comfort section explicitly 147 g on the scale. Tested firmware 1.0.1, Headphones Connect 9.3.0. Bluetooth-only model with built-in mic and no detachable audio cable.","measured_battery_life":"Runtime section: approximately 59 h at 60% maximum volume using AAC. Tested firmware 1.0.1 and app 9.3.0. ANC absent. Lighting and other app settings not stated. Higher than maker AAC 50 h under this measured volume condition. Published approximation retained, not an invented estimate.","measured_latency":"Connectivity section: 224 ms measured Bluetooth delay. Codec, host OS and equipment not stated, so platform/codec cells omitted. Firmware 1.0.1, app 9.3.0. Automatic video compensation does not apply to gaming.","microphone_count":"Microphone section explicitly one unique microphone, voice pickup, not inferred from a diagram.","carrying_case":"Technical characteristics/Construction: Housse de protection fournie=Non, explicitly no supplied protective bag."}},{"url":"https://www.lesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.html","kind":"review_site","accessed":"2026-10-05","fields":["ear_cup_material","earpad_replaceable","foldable","anc"],"notes":{"ear_cup_material":"Construction section: plastic shells.","earpad_replaceable":"Photo caption explicitly says detachable and replaceable cushions. Attachment not inferred.","foldable":"Construction section: earcups pivot 90 degrees. Flat swivel does not mean inward hinge.","anc":"Presentation and connectivity sections explicitly say no active noise cancelling. Review firmware 1.0.1 and Headphones Connect 9.3.0."}},{"url":"https://sony.mediaroom.com/2023-02-21-Sony-Electronics-announces-two-new-headphone-models-the-WH-CH720N-over-ear-and-WH-CH520-on-ear-wireless-headphones-featuring-Sonys-Digital-Sound-Equipment-Engine","kind":"press_release","accessed":"2026-10-07","fields":["launch_price_usd","markets"],"notes":{"launch_price_usd":"Original Sony Electronics release dated February 21, 2023. Pricing and availability explicitly gives WH-CH520 MSRP $59.99. US consumer price excludes sales tax. WH-CH720N price $149.99 is separate.","markets":"Original US release names Sony Electronics, Amazon and Best Buy sales. Other regions and colours do not inherit US part numbers."}},{"url":"https://community.sony.co.uk/t5/discover-sony/not-one-but-two-new-headphones-launched-this-month/ba-p/3904427","kind":"manufacturer_page","accessed":"2026-10-07","fields":["launch_price_eur"],"notes":{"launch_price_eur":"February 2023 Sony Community Team launch article. Pricing and availability gives WH-CH520 March 2023 suggested retail price 70 EUR and 60 GBP. Published European consumer price includes VAT. Direct HTTP returned 403. Full public indexed article read through web. Later discounts excluded."}},{"url":"https://www.bhphotovideo.com/c/product/1754496-REG/sony_whch520_b_wireless_on_ear_headphones_with.html","kind":"retailer","accessed":"2026-10-07","fields":["gtins","drivers_per_side","warranty_years"],"notes":{"gtins":"Exact Black WHCH520/B product UPC 027242925205. Other colours do not inherit this identifier.","drivers_per_side":"Exact Headphone specification table states Number of Drivers 1 per Earpiece. Direct physical count, not inferred from 30 mm diameter.","warranty_years":"Exact US WHCH520/B Items Included states Limited 1-Year Manufacturer Warranty. Scope is the original US manufacturer term stated by this dealer. Statutory rights and paid plans are separate. Current official Sony warranty PDF was inaccessible. No contrary exact term proved."}},{"url":"https://www.sony.jp/headphone/products/WH-CH520/spec.html","kind":"manufacturer_page","accessed":"2026-10-07","fields":["spec_sheet_url"],"notes":{"spec_sheet_url":"Exact Japanese maker WH-CH520 specification table read in Shift-JIS. Covers closed dynamic 30 mm driver, USB charging, runtime, Bluetooth profiles, codecs and A2DP transmission band. No sibling specifications inherited."}},{"url":"https://www.whathifi.com/reviews/sony-wh-ch520","kind":"review_site","accessed":"2026-10-07","fields":["eq_bands"],"notes":{"eq_bands":"Design and features paragraph explicitly states a five-band custom playback equalizer in Headphones Connect. CLEAR BASS control is separate. EQ preset names not stated."}},{"url":"https://www.soundguys.com/sony-bluetooth-headphone-control-mac-os-160060/","kind":"press","accessed":"2026-10-07","fields":["onboard_eq"],"notes":{"onboard_eq":"July 2026 report lists WH-CH520 among v2 supported devices. It says manual EQ and presets are saved to the headset and need not be reapplied on another device. Applies to Bluetooth playback. CH520 compatibility is developer-reported. Reporter personally tested WH-1000XM5 only. No app platform or ANC features inherited."}},{"url":"https://helpguide.sony.net/mdr/2958/v1/en/print.pdf","kind":"manual","accessed":"2026-10-07","fields":["platform_connections","wireless_receiver"],"notes":{"platform_connections":"Exact manual Android and iPhone pairing chapters, call chapters pages 71-76, and computer video-call page 77 naming Windows 10, Windows 11 and Mac. Music uses A2DP. Calls use HFP or HSP with supported host and app selection. Some video apps may not expose the correct microphone profile. USB audio excluded.","wireless_receiver":"Complete package inventory gives headset and USB charging cable. All documented playback routes use Bluetooth. No dedicated proprietary wireless audio dongle. Generic host Bluetooth adapters do not count as dedicated receivers."}},{"url":"https://fccid.io/AK8YY2958/Letter/Charge-Mode-Letter-6126147.pdf","kind":"regulatory","accessed":"2026-10-07","fields":["fcc_id"],"notes":{"fcc_id":"Original Sony Charge Mode Letter, independently downloaded from public FCCID archive. Subject explicitly names FCC ID AK8YY2958. Maker manual and photographed retail-unit label identify model YY2958 as WH-CH520. Original fcc.report mirror returned 403 during verification. No battery capacity inferred."}},{"url":"https://www.soundguys.com/sony-wh-ch520-review-98695/","kind":"measurement","accessed":"2026-10-07","fields":["measured_frequency_response_notes"],"notes":{"measured_frequency_response_notes":"Public lab frequency-response interpretation under ideal-fit conditions. Tested firmware 1.01, Headphones Connect 8.5, purchased WH-CH520/BZ over four days. Rig, EQ mode and codec not stated in article. Qualitative assessment only. No numeric deviation invented."}},{"url":"https://www.rtings.com/headphones/reviews/sony/wh-ch520-wireless","kind":"measurement","accessed":"2026-10-07","fields":["measured_microphone_notes"],"notes":{"measured_microphone_notes":"Public Phone Calls verdict from tested Black WH-CH520, RTINGS methodology v1.5. Review updated April 9, 2024. Bluetooth connection. Codec, firmware, host and speech level not stated in public verdict. Membership-locked numeric results not used."}},{"url":"https://www.soundguys.com/sony-wh-ch520-review-98695/","kind":"measurement","accessed":"2026-10-07","fields":["measured_battery_life"],"notes":{"measured_battery_life":"Second row is SoundGuys standardized continuous playback result 55 h 25 min, converted exactly to hours. Firmware 1.01, Headphones Connect 8.5, purchased WH-CH520/BZ. Codec, volume and EQ/DSEE settings not stated in article. First row 59 h belongs to existing Les Numeriques AAC test at 60% volume. Distinct methods and conditions. Results are not averaged."}},{"url":"https://www.lesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.html","kind":"review_site","accessed":"2026-10-07","fields":["user_replaceable_parts"],"notes":{"user_replaceable_parts":"Construction photo caption explicitly states the ear cushions are detachable and replaceable. Existing earpad_replaceable true has the same evidence. Attachment mechanism and manufacturer spare-part availability not inferred."}},{"url":"https://www.tomsguide.com/audio/headphones/sony-wh-1000xm4c-wh-ch730n-wh-ch530-announced","kind":"review_site","accessed":"2026-10-23","fields":["successor"],"notes":{"successor":"Tom's Guide says the Sony WH-CH530 succeeds the WH-CH520."}},{"url":"https://www.soundguys.com/sony-wh-ch530-review-162786/","kind":"measurement","accessed":"2026-10-23","fields":["successor"],"notes":{"successor":"SoundGuys calls the WH-CH520 the previous model of the WH-CH530."}}],"fields_filled":75,"updated":"2026-10-23"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}