{"data":{"slug":"sony-linkbuds-fit","type":"earbuds","brand":"Sony","name":"LinkBuds Fit","aliases":["WF-LS910N","YY2975","WFLS910N"],"release_date":"2024-10","url":"https://arkivo.dev/earbuds/sony-linkbuds-fit","specs":{"series":"LinkBuds","model_numbers":["WF-LS910N","YY2975"],"gtins":null,"announce_date":"2024-10-01","status":null,"predecessor":"sony-linkbuds-s","successor":null,"launch_price_usd":199.99,"launch_price_eur":null,"markets":["GB","US","JP"],"colors":["Black","White","Green","Pink","Violet"],"manufacturer_url":"https://www.sony.co.uk/headphones/products/linkbuds-fit?locale=en_GB","spec_sheet_url":"https://www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specifications","manual_url":"https://helpguide.sony.net/mdr/2975/v1/en/print.pdf","eprel_registration_number":null,"warranty_years":null,"segment":"music","form_factor":"in_ear","bud_shape":"stemless","single_bud_use":"either","rgb_lighting":null,"drivers":[{"type":"dynamic","role":null,"size_mm":8.4,"count":null}],"driver_type":"dynamic","driver_size_mm":8.4,"drivers_per_side":null,"driver_diaphragm_material":null,"frequency_response_hz":null,"impedance_ohm":null,"sensitivity_db":null,"sensitivity_reference":null,"max_sample_rate_khz":96,"max_bit_depth_bits":null,"adaptive_eq":null,"sound_personalization":true,"onboard_eq":null,"eq_bands":5,"eq_presets":null,"volume_limit_db":null,"virtual_surround":["360 Reality Audio"],"head_tracking":true,"anc":true,"anc_type":null,"anc_mic_count":null,"anc_adaptive":true,"anc_levels":null,"anc_claimed_attenuation_db":null,"transparency_mode":true,"transparency_adjustable":true,"adaptive_audio_mode":null,"conversation_detection":true,"wind_noise_reduction":true,"measured_frequency_response_notes":"Lab response has emphasized bass, a dip in low mids and uneven highs against the reviewer preference curve.","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":"Standardized recordings show problems with street noise and reverberation, while wind was handled better.","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_latency_game_mode_ms":null,"measured_battery_life":[{"anc":null,"codec":null,"hours":6.77}],"measured_battery_life_h":6.77,"measured_battery_life_with_case_h":null,"measured_charge_time_min":null,"measured_weight_g":null,"microphone_count":null,"microphone_count_total":null,"voice_pickup_sensor":null,"microphone_noise_reduction":"ai","voice_call_bandwidth":null,"mute_button":null,"sidetone":null,"chipset":"Sony Integrated Processor V2","connection_types":["bluetooth"],"bluetooth_version":"5.3","bluetooth_codecs":["SBC","AAC","LDAC","LC3"],"bluetooth_profiles":["A2DP","AVRCP","HFP","HSP","TMAP","CSIP","MCP","VCP","CCP"],"bluetooth_le_audio":true,"auracast":null,"multipoint":true,"multipoint_device_count":2,"multipoint_ldac":null,"paired_device_memory":8,"automatic_device_switching":true,"fast_pair":["google_fast_pair","microsoft_swift_pair"],"audio_sharing":null,"wireless_range_m":10,"wireless_receiver":null,"receiver_connector":null,"simultaneous_2_4ghz_bluetooth":null,"low_latency_mode":null,"latency_claimed":null,"latency_claimed_min_ms":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}],"feature_requirements":[{"feature":"LE Audio / LC3","requirement":"Compatible Android smartphone and Sound Connect LE Audio setup. Classic-only multipoint, Quick Access and some voice-assistant functions become unavailable."},{"feature":"Google audio switch","requirement":"Compatible Android 8 or later devices connected through Google Fast Pair."},{"feature":"Head tracking","requirement":"Android 13+ head-tracking-compatible phone. 360 Reality Audio head tracking also requires certified phone and compatible 360 content. Amazon Music is excluded. Android multichannel head tracking depends on supported app/content. Xperia 1 V multichannel playback is limited to YouTube as stated by maker."},{"feature":"LDAC high-resolution playback","requirement":"LDAC-compatible source and Sony Sound Connect setup. Maker specifies 96 kHz sampling at 990 kbps for published A2DP bandwidth. High-resolution streaming also requires Android 10+ compatible player. This is not lossless playback or an acoustic frequency-response claim."},{"feature":"DSEE Extreme","requirement":"Enable in Sony Sound Connect. Maker describes upsampling compressed CD/MP3 material up to 96 kHz/24-bit with SBC/AAC/LDAC. This does not establish incoming source bit depth, so no max_bit_depth_bits inferred."}],"official_license":null,"battery_capacity_mah":null,"battery_user_replaceable":false,"battery_life_claimed":[{"mode":"anc_on","codec":"LDAC","spatial_audio":null,"with_case":false,"hours":3.5},{"mode":"transparency","codec":"LDAC","spatial_audio":null,"with_case":false,"hours":3.5},{"mode":"anc_off","codec":"LDAC","spatial_audio":null,"with_case":false,"hours":4.5},{"mode":"anc_on","codec":"AAC","spatial_audio":null,"with_case":false,"hours":5.5},{"mode":"transparency","codec":"AAC","spatial_audio":null,"with_case":false,"hours":5.5},{"mode":"anc_off","codec":"AAC","spatial_audio":null,"with_case":false,"hours":8},{"mode":"anc_on","codec":"SBC","spatial_audio":null,"with_case":false,"hours":5},{"mode":"transparency","codec":"SBC","spatial_audio":null,"with_case":false,"hours":5},{"mode":"anc_off","codec":"SBC","spatial_audio":null,"with_case":false,"hours":7.5},{"mode":"anc_on","codec":"LC3","spatial_audio":null,"with_case":false,"hours":4.5},{"mode":"transparency","codec":"LC3","spatial_audio":null,"with_case":false,"hours":4.5},{"mode":"anc_off","codec":"LC3","spatial_audio":null,"with_case":false,"hours":7.5},{"mode":"call","codec":null,"spatial_audio":null,"with_case":false,"hours":4},{"mode":"anc_on","codec":null,"spatial_audio":null,"with_case":true,"hours":21}],"battery_life_max_h":8,"battery_life_anc_on_h":5.5,"battery_life_anc_off_h":8,"battery_life_with_case_h":21,"battery_life_with_case_anc_on_h":21,"talk_time_h":4,"charge_time_0_100_min":120,"charging_notes":null,"quick_charge_min":5,"quick_charge_playback_h":1,"case_battery_capacity_mah":null,"case_battery_user_replaceable":null,"charging_port":"usb_c","case_charge_time_min":180,"wireless_charging":false,"wireless_charging_standards":null,"wireless_charging_max_w":null,"case_speaker":null,"case_screen":null,"case_audio_transmitter":false,"control_types":["touch","head_gestures","voice_commands"],"volume_control":"touch","gesture_controls":["Wide Area Tap on earbud or nearby skin","Head nod to accept a call","Head shake to reject a call"],"customizable_controls":true,"voice_assistant":["Amazon Alexa","Google app","Siri"],"wear_detection":true,"sensors":["Infrared wear sensors"],"heart_rate_sensor":null,"skin_temperature":null,"hearing_aid_feature":null,"medical_clearances":null,"hearing_test":null,"loud_sound_reduction":null,"health_features":null,"ear_tip_sizes":["SS","S","M","L"],"ear_tip_materials":["silicone"],"stabilizers":["fins"],"fit_test":true,"ip_rating":["IPX4"],"case_ip_rating":null,"water_resistance_depth_m":null,"companion_app":"Sony | Sound Connect","companion_app_platforms":["android","ios"],"firmware_updatable":true,"find_my_networks":null,"precision_finding":null,"live_translation":null,"weight_g":4.9,"dimensions_mm":null,"case_weight_g":41,"case_dimensions_mm":null,"hi_res_audio":["hi_res_audio_wireless"],"communication_certifications":null,"fcc_ids":["AK8YY2975"],"other_certifications":null,"in_the_box":["Sony LinkBuds Fit earbuds with Air Fitting Supporters","Charging case","USB-A to USB-C cable","Documents","Soft fitting earbud tips (SS, S, M, L)"],"cables_included":[{"type":"USB-A to USB-C charging cable","length_m":null,"count":1}]},"variants":[],"sources":[{"url":"https://www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specifications","kind":"manufacturer_page","accessed":"2026-10-05","fields":["spec_sheet_url","series","bluetooth_version","bluetooth_codecs","bluetooth_profiles","weight_g","case_weight_g","wireless_range_m"],"notes":{"spec_sheet_url":"Full exact maker support technical table. Bluetooth transmission bandwidth is not acoustic frequency response. Unlabelled case dimensions are not assigned to width/height/depth. Published driver diameter is 8.4 mm, with dynamic technology separately documented. Physical quantity per earbud remains unproved. The driver row preserves the proved size/type without asserting a quantity, so total driver count remains unknown.","weight_g":"Approximate one-earbud mass, including M ear tip and attached fitting supporter.","case_weight_g":"Exact charging-case mass, separate from earbuds.","bluetooth_codecs":"LC3 needs compatible LE Audio Android hardware and app setup. Fit LDAC uses Classic Audio. No Auracast inferred from LC3 or Bluetooth 5.3."}},{"url":"https://www.sony.co.uk/headphones/products/linkbuds-fit?locale=en_GB","kind":"manufacturer_page","accessed":"2026-10-05","fields":["manufacturer_url","segment","form_factor","bud_shape","markets"],"notes":{"manufacturer_url":"Exact model maker product page. Fit is sealed-tip design.","markets":"This exact UK page establishes GB. US launch and Japanese product pages separately establish their own markets."}},{"url":"https://helpguide.sony.net/mdr/2975/v1/en/print.pdf","kind":"manual","accessed":"2026-10-05","fields":["manual_url","model_numbers","single_bud_use","connection_types","bluetooth_le_audio","multipoint","multipoint_device_count","paired_device_memory","automatic_device_switching","fast_pair","charging_port","charge_time_0_100_min","case_charge_time_min","quick_charge_min","quick_charge_playback_h","control_types","volume_control","gesture_controls","customizable_controls","voice_assistant","wear_detection","sensors","stabilizers","conversation_detection","companion_app","companion_app_platforms","firmware_updatable","compatible_platforms","platform_connections","in_the_box","cables_included","feature_requirements","fit_test","transparency_mode","transparency_adjustable","bluetooth_version","bluetooth_codecs","bluetooth_profiles","weight_g","case_weight_g","wireless_range_m","ear_tip_sizes"],"notes":{"manual_url":"Original exact English guide 154 pages. Box page 9, runtime page 28, specifications pages 153-154, app pages 124-125 inspected.","multipoint":"Two concurrent sources in Classic Audio, one playing stream. App list marks multipoint unavailable during LE Audio. No simultaneous LC3 multipoint claim.","automatic_device_switching":"Printed page 85 explicitly Google audio switch on compatible Android 8+ devices, using Fast Pair. Separate from Sony Auto Switch to LinkBuds Speaker.","fast_pair":"Android Google audio switch chapter explicitly requires Google Fast Pair. Windows 10/11 chapters explicitly document Microsoft Swift Pair.","charge_time_0_100_min":"Approximate earbuds-only full charge in case. Case-only charging is separately published.","quick_charge_playback_h":"Maker approximately one hour of earbud music after five-minute charging. Codec/volume unspecified for this quick-charge claim. Excludes case-inclusive runtime.","customizable_controls":"App reassigns left/right function groups, voice functions and Quick Access. No arbitrary individual-gesture remapping inferred.","voice_assistant":"Separate Amazon Alexa, Android Google app and iPhone Siri chapters. Cloud/device/app/region restrictions apply. Some voice routes and Quick Access are unavailable under LE Audio. On-device playback Voice Control is represented in control_types, not invented as a cloud assistant.","wear_detection":"Parts diagrams name built-in IR sensors. App enables automatic pause/resume and power-off when removed.","conversation_detection":"Speak-to-Chat automatically pauses/mutes music when wearer speaks. Does not imply a medical hearing feature.","platform_connections":"Exact Android/iPhone/Windows/Mac pairing chapters and computer calls chapter. Classic phone/desktop calls need compatible HFP/HSP app settings. LE Audio availability is separately restricted.","in_the_box":"Complete standard box list. Factory Air Fitting Supporters are attached. Separately sold covers/supporter colours and Olivia edition promotions excluded.","feature_requirements":"Exact manual Classic/LE Audio and Google audio switch conditions. Spatial phone/content requirements independently retained in the source describing tracking.","fit_test":"Manual page 10 explicitly measures ear-tip air-tightness to find optimal tips, distinct from general wearing-condition check.","transparency_adjustable":"Pages 100-101 and app page 124 document changing ambient capture and Auto Ambient Sound sensitivity.","bluetooth_version":"Original exact manual printed pages 153-154 explicitly publish Bluetooth 5.3, named codecs and profiles.","weight_g":"Manual explicitly approximate one-earbud weight with M tip and fitting supporter.","case_weight_g":"Manual separately publishes charging-case weight, excluding earbud mass.","wireless_range_m":"Manual explicitly approximate line-of-sight 10 m. Obstacles, interference, antenna, reception and software conditions affect actual range.","ear_tip_sizes":"Original manual page 9 exact standard box includes SS/S/M/L tips, two of each. M tips are fitted at purchase."}},{"url":"https://helpguide.sony.net/mdr/2975/v1/en/print.pdf","kind":"manual","accessed":"2026-10-05","fields":["battery_life_claimed","ip_rating"],"notes":{"battery_life_claimed":"Exact page 28 codec/mode runtime table. EQ, DSEE Extreme, Speak-to-Chat, voice wake, Service Link and Auto Ambient Sound shorten runtime. Call 4h is ANC on/off. Transparency-call 3.5 h does not fit call enum and is omitted.","ip_rating":"Exact Fit manual publishes IPX4 splash resistance for earbuds only. Sound conduit, air holes and microphone holes excluded. Charging case explicitly not water resistant."}},{"url":"https://sony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-Speaker","kind":"press_release","accessed":"2026-10-05","fields":["announce_date","launch_price_usd","chipset","markets","battery_life_claimed","colors"],"notes":{"launch_price_usd":"Original maker launch MSRP 199.99 USD. Later SoundGuys commerce widget 229.99 USD is excluded. Before US local sales tax. EUR VAT scope unproved.","announce_date":"October 1 opens preorder. Actual October retail month independently established below.","chipset":"Exact product launch explicitly names Integrated Processor V2 in this model, not inferred from sibling hardware.","battery_life_claimed":"Body explicitly 21 h including case. Footnote 9 specifies noise cancellation and Bluetooth. Recharge-count marketing is not multiplied into a different total. Codec unstated.","colors":"Original US maker launch lists Black, White, Green and US-only Violet Olivia edition. Separately sold accessory-cover colours are not earbud finishes."}},{"url":"https://www.sony.jp/headphone/products/LinkBuds_Fit/","kind":"manufacturer_page","accessed":"2026-10-05","fields":["colors","markets"],"notes":{"colors":"Japanese current product lists base finishes including later Pink. Original US maker release separately proves US Violet Olivia edition."}},{"url":"https://www.sony.jp/headphone/products/LinkBuds_Fit/feature_4.html","kind":"manufacturer_page","accessed":"2026-10-05","fields":["microphone_noise_reduction"],"notes":{"microphone_noise_reduction":"Exact model maker call paragraph explicitly AI-trained separation of wearer voice and environmental noise. Published physical voice/total capsule counts not found. Internal microphone is expressly used for calls, so exterior diagram alone is incomplete."}},{"url":"https://www.sony.jp/headphone/products/LinkBuds_Fit/feature_2.html","kind":"manufacturer_page","accessed":"2026-10-08","fields":["driver_type","anc","anc_adaptive","transparency_mode","transparency_adjustable","wind_noise_reduction","virtual_surround","sound_personalization","drivers","hi_res_audio","feature_requirements"],"notes":{"driver_type":"Exact named Dynamic Driver X 8.4 mm. Diaphragm combines different dome/edge materials, whose chemical identities are not published.","anc_adaptive":"Auto NC Optimizer explicitly detects wearing fit and environment and continuously optimizes cancellation. This is separate from activity-based switching.","wind_noise_reduction":"Physical wind reduction structure around mic. No selectable wind-processing mode assumed.","transparency_adjustable":"Manual page 101 auto-adjusts ambient capture in ambient mode. This does not establish an ANC/transparency blend, so adaptive_audio_mode omitted.","virtual_surround":"Compatible 360 Reality Audio streaming service, content and Sound Connect ear-shape analysis required. DSEE 96 kHz/24 bit upscaling is not accepted input resolution and is omitted from max digital input fields.","drivers":"Exact LinkBuds Fit section explicitly 8.4 mm Dynamic DriverX, not borrowed merely because the page mentions WF1000XM5. Existing dynamic technology retained, no guessed dome/edge material or count.","hi_res_audio":"Exact model describes wireless high-resolution playback through LDAC and names its Hi-Res Audio Wireless certification. 990 kbps LDAC high-res content condition, not a lossless claim.","feature_requirements":"Exact head-tracking requirements: Android 13+, compatible phone/content/app, Amazon Music excluded for 360 Reality Audio. DSEE Extreme 96/24 is upsampling and not incoming source capability."}},{"url":"https://www.whathifi.com/reviews/sony-linkbuds-fit","kind":"review_site","accessed":"2026-10-05","fields":["eq_bands","head_tracking"],"notes":{"eq_bands":"Exact review Features states five custom EQ bands. App/firmware version unknown. CLEAR BASS separately controlled.","head_tracking":"Exact review Features explicitly supports head tracking. Compatible phone/content/app required, without claiming universal iOS tracking."}},{"url":"https://www.techradar.com/health-fitness/sony-linkbuds-fit-the-best-fitness-earbuds-for-people-who-dont-like-earbuds","kind":"review_site","accessed":"2026-10-05","fields":["release_date"],"notes":{"release_date":"Retrospective Price & availability explicitly Released in October 2024. October 1 maker was preorder, not used as retail."}},{"url":"https://www.soundguys.com/sony-linkbuds-fit-review-127506/","kind":"review_site","accessed":"2026-10-08","fields":["wireless_charging","measured_battery_life","measured_frequency_response_notes","measured_microphone_notes","ear_tip_materials","case_audio_transmitter"],"notes":{"wireless_charging":"Exact charging paragraph explicitly USB-only and no wireless charging. Fit FAQ footer says Yes, contradicting its body. Primary maker table/manual only publish USB charging. Detailed tested body takes precedence over generic footer.","measured_battery_life":"Own standardized rundown 6 h 46 min (existing row retained). Exact review unit WFLS910NB.UC, firmware 1.2.0 and Sound Connect 11.0.2. Runtime paragraph does not specify ANC, codec or exact host, so no flags inferred from its iPhone/computer discussion. LC3 extension is explicitly untested and omitted.","measured_frequency_response_notes":"Exact lab commentary. No graph extraction, ratings or MOS converted into dB.","measured_microphone_notes":"Exact recorded ideal/office/street/wind/reverberant speech samples. No numerical capsule count inferred.","ear_tip_materials":"Exact review use section explicitly says the tips are made from a single piece of silicone.","case_audio_transmitter":"Exact-model review feature assessment explicitly No transmitter in case. Review unit WFLS910NB.UC, firmware 1.2.0 and Sound Connect 11.0.2. This negative capability is not inferred from a port photo."}},{"url":"https://www.soundguys.com/how-we-test/","kind":"measurement","accessed":"2026-10-05","fields":["measured_battery_life","measured_frequency_response_notes","measured_microphone_notes"],"notes":{"measured_battery_life":"Standardized continuous music peaks 75 dB SPL. This does not establish an unstated ANC/codec for a particular sample.","measured_frequency_response_notes":"Bruel & Kjaer 5128 fixture, SoundCheck and source preference curve.","measured_microphone_notes":"Calibrated artificial mouth with simulated noise, wind and reverberation."}},{"url":"https://www.sony.jp/headphone/products/LinkBuds_Fit/spec.html","kind":"manufacturer_page","accessed":"2026-10-08","fields":["drivers","max_sample_rate_khz"],"notes":{"drivers":"Exact model specification lists 8.4 mm driver unit. Per-bud transducer count is not explicitly stated and is not inferred.","max_sample_rate_khz":"Exact model A2DP transmission specification explicitly LDAC 96 kHz sampling at 990 kbps. Highest documented supported source condition. 20 Hz to 40 kHz is A2DP transmission bandwidth, not stored as acoustic response."}},{"url":"https://www.bhphotovideo.com/lit_files/1165249.pdf","kind":"manual","accessed":"2026-10-08","fields":["fcc_ids","battery_user_replaceable"],"notes":{"fcc_ids":"Original Sony Reference Guide 5-058-500-11(1), ©2024 Sony, exact LinkBuds Fit/YY2975. Page 1 headset regulatory block explicitly FCC ID AK8YY2975. Public B&H mirror of original two-page maker PDF.","battery_user_replaceable":"Original reference guide page 1 explicitly non-replaceable button/coin cells and identifies Z35FH. This supports the earbud coin-cell flag only. The charging case battery replacement flag remains unknown, not inferred from recycling instructions."}},{"url":"https://m.gsmarena.com/sony_unveils_linkbuds_open_with_open_design_linkbuds_fit_replace_the_linkbuds_s-amp-64762.php","kind":"review_site","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"GSMArena says the LinkBuds Fit replaces the LinkBuds S and calls it the sequel to the LinkBuds S."}},{"url":"https://www.tomsguide.com/audio/sony-revives-linkbuds-series-with-a-focus-on-style-and-fit-can-they-beat-bose","kind":"review_site","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"Tom's Guide says the LinkBuds Fit takes over for the LinkBuds S."}}],"fields_filled":84,"updated":"2026-10-23"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}