{"data":{"slug":"sony-wh-1000xm4c","type":"headset","brand":"Sony","name":"WH-1000XM4C","aliases":[],"release_date":"2026-09","url":"https://arkivo.dev/headsets/sony-wh-1000xm4c","specs":{"series":"1000X","model_numbers":["YY3013"],"gtins":["4548736179806"],"announce_date":"2026-09-07","status":"available","predecessor":"sony-wh-1000xm4","successor":null,"launch_price_usd":299.99,"launch_price_eur":null,"markets":["GB","FR","US"],"colors":["Black","Platinum Silver","Lavender"],"manufacturer_url":"https://www.sony.co.uk/headphones/products/wh-1000xm4c","spec_sheet_url":"https://www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specifications","manual_url":"https://helpguide.sony.net/mdr/3013/v1/en/print.pdf","eprel_registration_number":null,"warranty_years":1,"segment":"music","form_factor":"over_ear","back_type":"closed","wearing_style":"headband","foldable":"flat_and_inward","ear_cups_swivel":true,"rgb_lighting":null,"lighting_zones":null,"driver_type":"dynamic","driver_size_mm":40,"drivers_per_side":null,"driver_diaphragm_material":"Liquid Crystal Polymer (LCP)","driver_magnet":"Neodymium","frequency_response_hz":{"min_hz":4,"max_hz":40000},"frequency_response_wireless_hz":{"min_hz":20,"max_hz":40000},"impedance_ohm":16,"sensitivity_db":101,"sensitivity_reference":"per_1mw","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":10,"eq_presets":["Hard","Soft","Heavy","Clear","Game"],"volume_limit_db":null,"virtual_surround":["360 Reality Audio"],"spatial_audio_licence_included":null,"head_tracking":null,"anc":true,"anc_type":"hybrid","anc_mic_count":4,"anc_adaptive":true,"anc_levels":null,"anc_claimed_attenuation_db":null,"transparency_mode":true,"transparency_adjustable":true,"conversation_detection":true,"wind_noise_reduction":null,"measured_frequency_response_notes":"Even bass, recessed upper mids from about 1.6 to 3.4 kHz, a dip near 7 kHz and extended upper treble.","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":"Street and incidental noise are attenuated. Office noise and wind are less effectively suppressed. The review unit also had call crackles and dropouts near three previously paired devices.","measured_microphone_lfe_hz":null,"measured_microphone_hfe_hz":null,"measured_microphone_noise_handling_db":null,"measured_latency":null,"measured_latency_bluetooth_ms":null,"measured_latency_2_4ghz_ms":null,"measured_battery_life":null,"measured_battery_life_h":null,"measured_clamping_force_n":null,"measured_weight_g":null,"microphone_type":"built_in","microphone_element":null,"microphone_pattern":null,"microphone_count":null,"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":null,"flip_to_mute":null,"mute_button":null,"mute_indicator":null,"sidetone":true,"sidetone_adjustable":null,"mic_windscreen":null,"connection_types":["analog","bluetooth"],"analog_connectors":["3_5mm_trs"],"cable_connector_headset_side":"3_5mm","cable_length_m":1.2,"usb_connector":"usb_c","usb_c_audio":false,"passive_wired_listening":true,"wireless_receiver":null,"receiver_connector":null,"wireless_range_m":10,"bluetooth_version":"6.0","bluetooth_codecs":["SBC","AAC","LDAC"],"bluetooth_le_audio":false,"auracast":false,"multipoint":true,"multipoint_device_count":2,"paired_device_memory":8,"simultaneous_2_4ghz_bluetooth":null,"fast_pair":["google_fast_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":930,"swappable_battery":null,"battery_count":1,"battery_life_claimed":[{"connection":"bluetooth","anc":true,"codec":null,"spatial_audio":null,"lighting":null,"hours":27},{"connection":"bluetooth","anc":false,"codec":null,"spatial_audio":null,"lighting":null,"hours":34},{"connection":"analog","anc":true,"codec":null,"spatial_audio":null,"lighting":null,"hours":19},{"connection":"analog","anc":false,"codec":null,"spatial_audio":null,"lighting":null,"hours":32}],"battery_life_max_h":34,"battery_life_anc_on_h":27,"battery_life_anc_off_h":34,"charging_port":"usb_c","charge_time_0_100_min":180,"quick_charge_min":3,"quick_charge_playback_h":1,"play_while_charging":null,"charging_dock":null,"control_types":["buttons","touch"],"volume_control":"touch","game_chat_mix":null,"customizable_controls":true,"wear_detection":true,"voice_assistant":["Google app","Siri"],"headband_type":"padded","headband_material":null,"frame_material":null,"ear_cup_material":"Plastic","earpad_material":"Faux leather","earpad_replaceable":true,"earpad_attachment":null,"earpad_inner_dimensions_mm":null,"ear_tip_sizes":null,"ip_rating":null,"user_replaceable_parts":["Ear pads","Headphone cable"],"companion_app":"Sony | Sound Connect","companion_app_platforms":["android","ios"],"firmware_updatable":true,"weight_g":253,"dimensions_mm":null,"hi_res_audio":["hi_res_audio","hi_res_audio_wireless"],"communication_certifications":null,"fcc_id":"AK8YY3013","other_certifications":["360 Reality Audio"],"in_the_box":["Wireless Noise Canceling Stereo Headset","Headphone cable","Carrying case","Documents"],"cables_included":[{"type":"Headphone cable","length_m":1.2,"count":1}],"carrying_case":"hard"},"variants":[],"sources":[{"url":"https://helpguide.sony.net/mdr/3013/v1/en/print.pdf","kind":"manual","accessed":"2026-10-07","fields":["manual_url","model_numbers","wearing_style","microphone_type","usb_connector","charging_port","charge_time_0_100_min","bluetooth_codecs","multipoint","multipoint_device_count","paired_device_memory","battery_life_claimed","quick_charge_min","quick_charge_playback_h","companion_app","companion_app_platforms","firmware_updatable","compatible_platforms","sidetone","weight_g","wireless_range_m","platform_connections","user_replaceable_parts"],"notes":{"manual_url":"Complete current English maker guide, 120 pages. Shared regional sibling model is not added as another product.","model_numbers":"Page 1 cover explicitly names this regulatory model.","wearing_style":"Location and function of parts chapter labels the headband and left/right units.","microphone_type":"Parts and controls chapter identifies the integrated voice microphone(s).","usb_connector":"Parts and controls labels USB Type-C charging port.","charging_port":"Charging chapter: USB Type-C cable to the charging port.","charge_time_0_100_min":"Charging page 30: approximately 3 h, explicitly defined as empty battery to full capacity. Converted to 180 min.","bluetooth_codecs":"Supported Codecs chapter gives the exact supported list. LDAC requires compatible host and sound-quality-priority setting.","multipoint":"Connecting to 2 devices chapter, page 69. Audio streams switch, not mix.","multipoint_device_count":"Same chapter page 69 explicitly two devices simultaneously.","paired_device_memory":"Android pairing page 42: up to eight devices remembered, oldest registration replaced.","battery_life_claimed":"Available Operating Time page 32, table visually checked. AAC/SBC Bluetooth ANC on 27 h and ANC/ambient off 34 h. LDAC ANC on 20 h and off 27 h omitted because codec column absent. Powered analog ANC on 19 h and off 32 h. Call and ambient-only rows excluded. EQ, DSEE and additional app functions can shorten these maxima.","quick_charge_min":"Available Operating Time page 32: 3 minutes charging.","quick_charge_playback_h":"Same page: approximately 1 h music playback after 3 minutes. Codec and ANC condition of quick-charge result are not published.","companion_app":"Using Sound Connect app chapter explicitly names the current app.","companion_app_platforms":"Same chapter directs installation from Google Play or Apple App Store.","firmware_updatable":"App chapter lists Update Software and dedicated firmware-update chapter.","compatible_platforms":"Individual Bluetooth chapters explicitly name Android, iPhone, Windows and Mac. No console path inferred.","sidetone":"Receiving and making calls chapters explicitly play the wearer voice through the headphones. Adjustable sidetone is not assumed.","weight_g":"Specifications chapter: approximate 253 g. Detachable cable inclusion is not stated.","wireless_range_m":"Printed page 104: maximum Bluetooth communication distance approximately 10 m. Varies with obstacles and electromagnetic environment. Maker claim, not a measured range.","platform_connections":"Android and iPhone pairing plus receiving/making calls chapters establish Bluetooth HFP/HSP speech. Printed page 98 computer video-call section selects WH-1000XM4C Hands-Free for both speaker and microphone and explicitly refers to Windows 11 and Mac pairing. Console and analog voice paths excluded.","user_replaceable_parts":"Exact model guide 72 detachable headphone cable. Pads separately proven by current SoundGuys review. Battery assembly remains report-only because the European reference self-repair sentence could not be independently reread during verification. Normal-operation battery swapping is not inferred."}},{"url":"https://www.sony.co.uk/headphones/products/wh-1000xm4c","kind":"manufacturer_page","accessed":"2026-10-05","fields":["manufacturer_url","segment"],"notes":{"manufacturer_url":"Exact current maker model page.","segment":"Maker music-listening headband headphone category, rather than an INZONE gaming headset."}},{"url":"https://sony.mediaroom.com/2026-09-07-Sony-Electronics-Introduces-WH-1000XM4C-M4-2nd-Gen-Wireless-Noise-Cancelling-Headphones-and-Updates-Popular-Mid-and-Entry-Level-Wireless-Headphones-with-WH-CH730N-and-WH-CH530","kind":"press_release","accessed":"2026-10-07","fields":["announce_date","launch_price_usd","markets"],"notes":{"announce_date":"Dated maker release, announcement date separate from first retail availability.","launch_price_usd":"US September 7, 2026 manufacturer launch release states suggested retail price USD 299.99.","markets":"US maker launch release offers the M4 2nd Gen through Sony Electronics and authorized US dealers."}},{"url":"https://helpguide.sony.net/mdr/3013/v1/en/print.pdf","kind":"manual","accessed":"2026-10-05","fields":["series","connection_types","control_types","volume_control","frequency_response_hz","impedance_ohm","sensitivity_db","sensitivity_reference","passive_wired_listening","cable_connector_headset_side","foldable","ear_cups_swivel","wear_detection","conversation_detection","anc","anc_type","anc_adaptive","transparency_mode","transparency_adjustable","customizable_controls","voice_assistant","virtual_surround","in_the_box"],"notes":{"series":"Current maker press names 1000X series.","connection_types":"Bluetooth connection chapters plus page 72 analog cable. USB charging is not USB audio.","control_types":"Parts chapter buttons and touch sensor, page 26-28 touch operations.","volume_control":"Page 27 touch swipe up/down. Analog cable uses source-device controls.","frequency_response_hz":"Page 119: 4 Hz to 40 kHz IEC, headphone cable with power on. Not passive acoustic range.","impedance_ohm":"Page 119: 16 ohms at 1 kHz headset off. Powered figure 40 ohms.","sensitivity_db":"Page 119: 101 dB/mW headset off. Powered 106 dB/mW. No older XM 4 value transferred.","sensitivity_reference":"Page 119 explicitly dB/mW.","passive_wired_listening":"Page 72 explicitly playback with headset off. Built-in voice mic unavailable through supplied cable, smartphone microphone used.","cable_connector_headset_side":"Page 72 stereo-mini cable/input-jack diagram.","foldable":"Page 13 storing: rotate both units flat, fold one unit toward headband. Both flat swivel and inward fold proved.","ear_cups_swivel":"Same page 13 explicitly rotate units to flatten.","wear_detection":"App page 8 plus wearing chapter: music pause/resume and power off based on removal.","conversation_detection":"App page 7 explicitly automatic Speak-to-Chat audio detection and settings.","anc":"App page 7 ANC and noise-canceling chapter.","anc_type":"Parts pages 14-16 identify external and internal noise-canceling microphones.","anc_adaptive":"App page 7 automatically adjusts noise cancellation based on detected actions.","transparency_mode":"App page 7 Ambient Sound Control.","transparency_adjustable":"Same page adjusts ambient mode.","customizable_controls":"Page 29 assigns NC/AMB button double-press to Quick Access service. Not universal remapping of every control.","voice_assistant":"Pages 100-103 Google app Android/Siri iPhone, hold touch panel more than 1 second. No Hey Siri.","virtual_surround":"App page 7 About 360 Reality Audio, supported service/content required.","in_the_box":"Page 12 headset, analog cable, case and documents. USB-A to USB-C cable supplied only for mainland China, omitted from European base."}},{"url":"https://www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specifications","kind":"manufacturer_page","accessed":"2026-10-07","fields":["driver_size_mm","back_type","cable_length_m","analog_connectors","frequency_response_wireless_hz","cables_included","bluetooth_version","spec_sheet_url"],"notes":{"driver_size_mm":"Public indexed exact maker specification cells: 40 mm playback driver. Direct fetch intermittent.","back_type":"Same exact maker table Headphone Type Closed.","cable_length_m":"Same table approximate 1.2 m headphone cable, charging cable not included in EU base.","analog_connectors":"Same table stereo mini plug, TRS audio-only cable confirmed by exact review.","frequency_response_wireless_hz":"Same table A2DP transmission band at LDAC 96 kHz sampling/990 kbps. 44.1 kHz band 20 Hz to 20 kHz. Not acoustic response.","cables_included":"One analog cable from guide page 12, published approximate 1.2 m maker length.","bluetooth_version":"Exact model specification table explicitly Bluetooth Version 6.0. This does not establish LE Audio or Auracast support by itself.","spec_sheet_url":"Official exact-model Specifications page. HTML specification sheet, not a fabricated PDF document."}},{"url":"https://www.sony.co.uk/headphones/products/wh-1000xm4c/feature-2","kind":"manufacturer_page","accessed":"2026-10-07","fields":["driver_diaphragm_material","eq_bands","hi_res_audio","other_certifications"],"notes":{"driver_diaphragm_material":"Powerful 40 mm drivers paragraph explicitly LCP diaphragms, not merely a coating.","eq_bands":"Fine-tune paragraph explicitly 10-band equalizer.","hi_res_audio":"Exact feature page shows Hi-Res Audio and Hi-Res Audio Wireless logos with LDAC high-resolution description.","other_certifications":"360 Reality Audio section explicitly calls these certified headphones. This is separate from Hi-Res logos and does not prove a bundled paid spatial licence or head tracking."}},{"url":"https://www.sony.co.uk/presscentre/sony-introduces-wh-1000xm4c-wireless-noise-cancelling-headphones-and-updates-popular-mid-and-entry-level-wireless-headphones-with-wh-ch730n-and-wh-ch530","kind":"press_release","accessed":"2026-10-05","fields":["colors","form_factor"],"notes":{"colors":"Exact WH-1000XM4C color list. Hello Kitty collaboration does not change base hardware.","form_factor":"Exact product section explicitly comfortable over-ear design."}},{"url":"https://www.whathifi.com/av/the-biggest-hi-fi-and-home-cinema-trends-releases-and-more-still-to-come-in-2026","kind":"press","accessed":"2026-10-05","fields":["release_date"],"notes":{"release_date":"Published September 11, 2026. The Sony headphone refresh section explicitly says all three headphones, including WH-1000XM4C, are available now. The maker September 7 announcement gives planned September European availability. Stored first retail month is September, without claiming September 7 as a sale date."}},{"url":"https://www.soundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130/","kind":"review_site","accessed":"2026-10-07","fields":["usb_c_audio","auracast","bluetooth_le_audio","predecessor","eq_presets","earpad_material","earpad_replaceable","user_replaceable_parts"],"notes":{"usb_c_audio":"Connectivity section explicitly cannot listen via USB-C.","auracast":"Review explicitly No Auracast. Bluetooth 6.0 alone is not Auracast proof.","bluetooth_le_audio":"Connectivity section explicitly reports absent LE audio features on this exact model. Future update is speculation, not stored.","predecessor":"Exact current review explicitly calls WH-1000XM4 its predecessor. This is the revived M4 branch, not a claim that XM6 is its predecessor.","eq_presets":"Current-model measured EQ chart tabs in public article data name these five presets. Regional Apache 207 future profile excluded.","earpad_material":"Current review identifies faux-leather over-ear padding. Polymer chemistry not stated.","earpad_replaceable":"Current-model build section explicitly allows hand removal for cleaning and replacement.","user_replaceable_parts":"Build section explicitly allows removing current ear pads by hand for cleaning and replacement."}},{"url":"https://www.argos.co.uk/product/9899456","kind":"retailer","accessed":"2026-10-07","fields":["gtins","status","markets","battery_count"],"notes":{"gtins":"Exact Black model WH1000XM4CB.CE7 product details table, EAN 4548736179806. Applies to this UK/EU Black SKU only, not every color or US bundle.","status":"Exact current Black product has price, delivery and purchase availability. September first availability remains separately sourced.","markets":"Exact WH1000XM4CB.CE7 current UK listing and delivery availability establish GB.","battery_count":"Exact model product details: Batteries required 1 x Li-Ion (included). One supplied headset battery assembly, not a claim about internal cell count."}},{"url":"https://www.sony.fr/presscentre/sony-ravive-ses-incontournables-le-wh-1000xm4c-fait-son-grand-retour-aux-cotes-de-ses-best-sellers-milieu-et-entree-de-gamme","kind":"press_release","accessed":"2026-10-07","fields":["markets"],"notes":{"markets":"France price and availability section explicitly offers the current model in September 2026. UK exact retail listing and US Sony announcement separately establish their markets. Not an exhaustive worldwide list."}},{"url":"https://content.abt.com/documents/183151/sony-headphones-WH1000XM4CB-warranty.pdf","kind":"manufacturer_pdf","accessed":"2026-10-07","fields":["warranty_years"],"notes":{"warranty_years":"Sony original Video and Audio Limited Warranty card, page 1, one year from original purchase for Sony or authorized-dealer purchases in the US and Canada. Linked by Abt exact WH1000XM4C/B product Warranty anchor. Scanned card visually read. Not an EU statutory-rights duration."}},{"url":"https://www.crutchfield.com/p_158XM4V2BK/Sony-WH-1000XM4C-Black.html","kind":"retailer","accessed":"2026-10-07","fields":["driver_type"],"notes":{"driver_type":"Exact current M4 2nd Gen product details explicitly identify dynamic 40 mm drivers. Public indexed product text retrieved. No older WH-1000XM4 driver fact transferred. Independently reproduced actual public indexed Product Highlights under exact M4C Black URL. Live normal curl 403 is not bypassed, legacy XM4 rows excluded."}},{"url":"https://www.currys.co.uk/products/sony-wh1000xm4c-wireless-bluetooth-noisecancelling-headphones-lavender-10310256.html","kind":"retailer","accessed":"2026-10-07","fields":["driver_magnet"],"notes":{"driver_magnet":"Exact current Lavender technical specifications table, Driver type: Neodymium drivers. Shared M4C hardware, not its pad or diaphragm material."}},{"url":"https://www.sony.co.uk/headphones/products/wh-1000xm4c/feature-1","kind":"manufacturer_page","accessed":"2026-10-07","fields":["anc_mic_count"],"notes":{"anc_mic_count":"Noise cancellation paragraph explicitly two microphones on each earcup. Four across both earcups. Help Guide parts chapter independently identifies internal and external ANC microphones. This is not the voice microphone count."}},{"url":"https://www.soundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130/","kind":"measurement","accessed":"2026-10-07","fields":["measured_frequency_response_notes","measured_microphone_notes"],"notes":{"measured_frequency_response_notes":"Objective Measurements prose and current product chart, Default profile. SoundGuys published method uses B&K 5128 and SoundCheck. Connection, codec and firmware not stated. No numerical deviation from target inferred.","measured_microphone_notes":"Current article microphone test section and ideal, office, street, wind and reverberant samples. SoundGuys method uses a calibrated artificial mouth and recorded speech with controlled background noise. Source unit caveat retained. Connection codec and firmware unstated."}},{"url":"https://www.soundguys.com/how-we-test/","kind":"measurement","accessed":"2026-10-07","fields":["measured_frequency_response_notes","measured_microphone_notes"],"notes":{"measured_frequency_response_notes":"Published headphone method: B&K 5128 head and torso simulator, 1704C-102 interface and SoundCheck. Do not infer unreported M4C codec, firmware or connection.","measured_microphone_notes":"Published speech method uses calibrated artificial mouth, recorded speech and controlled ideal, background-noise, wind and reverberation conditions."}},{"url":"https://www.sony.co.uk/headphones/products/wh-1000xm4c/feature-5","kind":"manufacturer_page","accessed":"2026-10-07","fields":["fast_pair"],"notes":{"fast_pair":"Google Fast Pair Android one-tap pairing paragraph and logo. Swift Pair claims for CH730N and CH530 are not transferred to M4C."}},{"url":"https://www.digitec.ch/en/s1/product/sony-wh-1000xm4c-dnc-27-h-wireless-headphones-73105609","kind":"retailer","accessed":"2026-10-07","fields":["battery_capacity_mah"],"notes":{"battery_capacity_mah":"Exact M4C technical battery table: 930 mAh. Headset capacity, not an external case or combined packs. Minimum/typical qualification not published. Maker Reference Guide confirms rechargeable 3.7 V lithium-ion battery but does not publish mAh. No Wh-derived capacity. Independently corroborated by exact Black CE7 RTV Euro AGD table, which explicitly labels 930 mAh nominal. No Wh-derived number."}},{"url":"https://www.whathifi.com/headphones/sony-wh-1000xm4c","kind":"review_site","accessed":"2026-10-07","fields":["headband_type"],"notes":{"headband_type":"October 5, 2026 current-model review build paragraph explicitly describes padding on both the earpads and headband."}},{"url":"https://gizmodo.com/sony-wh-1000xm4c-review-still-kind-of-goated-2000810045/","kind":"review_site","accessed":"2026-10-07","fields":["ear_cup_material"],"notes":{"ear_cup_material":"Exact current review identifies matte plastic outer earcups. Internal frame and headband material not inferred."}},{"url":"https://www.galaxus.de/de/s1/product/sony-wh-1000xm4c-dnc-27-h-kabellos-kopfhoerer-73105609","kind":"retailer","accessed":"2026-10-07","fields":["carrying_case"],"notes":{"carrying_case":"Exact M4C technical accessories table identifies Headphone case: Hard Case. Maker includes one carrying case. No old XM4 case specification transferred."}},{"url":"https://fccid.io/AK8YY3013/Letter/02-FCC-Authorization-Letter-9381384","kind":"regulatory","accessed":"2026-10-07","fields":["fcc_id"],"notes":{"fcc_id":"Public FCC filing metadata identifies full FCC ID AK8YY3013, product code YY3013 and Sony Corporation. Exact maker manual cover maps WH-1000XM4C to YY3013. Original FCC exhibit fetch returned 403, not treated as a read document."}},{"url":"https://www.sony.com/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/software/00269130","kind":"manufacturer_page","accessed":"2026-10-07","fields":["onboard_eq"],"notes":{"onboard_eq":"Exact WH-1000XM4C support-linked current Sound Connect page explicitly says smartphone-configured Equalizer carries over to PC without PC app. Actual model EQ independently supported by exact guide and maker sound page. Active Bluetooth route. Generic model-dependent other features are not inherited, passive analog EQ unproved."}},{"url":"https://www.euro.com.pl/sluchawki/sony-wh-1000xm4c-anc-nauszne-bluetooth-czarny.bhtml","kind":"retailer","accessed":"2026-10-07","fields":["battery_capacity_mah"],"notes":{"battery_capacity_mah":"Exact Black WH-1000XM4CB.CE7 table explicitly Pojemność nominalna 930 mAh. Published nominal headset battery capacity, corroborates retained Digitec claim, not inferred from 3.441 Wh or 3.7 V."}},{"url":"https://www.soundguys.com/sony-wh-1000xm4c-launch-162596/","kind":"review_site","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"SoundGuys calls the WH-1000XM4C an updated version of the WH-1000XM4 and calls the XM4 its predecessor."}}],"fields_filled":91,"updated":"2026-10-23"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}