Sony INZONE H9 II / Sony LinkBuds Fit (WF-LS910N)

Sony INZONE H9 II: WH-G910N · WHG910N/B, black

Sony LinkBuds Fit (WF-LS910N): LinkBuds Fit WF-LS910N in-ear true wireless earbuds; black, white, green and pink. The open-design LinkBuds Open (WF-L910) and the older LinkBuds S (WF-LS900N) are separate models.

SpecificationSony INZONE H9 IISony LinkBuds Fit (WF-LS910N)
Release year20252024
Release year2025 Sony—
DesignOver-ear, closed-back; adjustable suspension headband Sony—
WeightApproximately 260 g without microphone Sony—
Microphone weightApproximately 13 g including windscreen Sony—
MicrophoneDetachable boom; mute button and red indicator Sony—
Gaming connection2.4 GHz through USB-C receiver Sony—
Receiver modePC / OTHER switch Sony—
Bluetooth5.3; Class 1 Sony—
CodecsSBC, AAC; LC3 through LE Audio Sony—
Simultaneous connectionUSB receiver + Bluetooth phone Sony—
Analog connection3.5 mm cable; powered or passive operation Sony—
When the cable is insertedBluetooth and receiver-based wireless functions are disabled Sony—
Noise controlANC and ambient sound mode; unavailable passively Sony—
Game/chat balanceOnly with the receiver in PC mode Sony—
Volume controlPhysical volume dial during wireless use Sony—
PC softwareINZONE Hub; unavailable through a Bluetooth connection Sony—
Phone appSony Sound Connect through Bluetooth Sony—
ChargingUSB-C; full charge approximately 3.5 hours, condition dependent Sony—
Use while chargingSupported Sony—
BatteryBuilt-in rechargeable lithium-ion SonyEarbuds: up to 5.5 hours of music with ANC on and 8 hours off; up to 4 hours of calls; earbud charge about 2 hours, case charge about 3 hours (USB) Sony
Wired frequency range5 Hz–20 kHz with power off; not a wireless measurement Sony—
Impedance440 Ω powered / 21 Ω passive at 1 kHz Sony—
Operating temperature0–40 °C Sony—
Water protectionNot waterproof Sony—
Box contentsUSB-C receiver, USB-A–USB-C charging cable, analog cable, microphone and soft pouch Sony—
Driver and frequency—8.4 mm driver; closed type; 20–20,000 Hz over Bluetooth (44.1 kHz), 20–40,000 Hz with LDAC (96 kHz, 990 kbps) Sony
Noise cancelling—Active noise cancelling; Personal NC Optimiser; Ambient Sound Mode and Auto Ambient Sound

Personal NC Optimiser tunes cancellation to the ear shape and how the buds are worn. Auto Ambient Sound changes how much outside sound is let in depending on the surroundings.

Sony
Bluetooth and codecs—Bluetooth 5.3; SBC, AAC, LDAC, LC3; A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP

LC3 and profiles such as TMAP/CSIP are for Bluetooth LE Audio, enabling lower-power audio on compatible phones. LDAC is used on Android for high-bitrate streaming; iPhones use AAC.

Sony
Multipoint and processing—Multipoint connection (two devices); DSEE Extreme

DSEE Extreme tries to restore high-frequency detail lost in compressed music files.

Sony
Fit—Newly designed Fitting Supporters and ear tips

The soft supporter fin rests against the ear’s ridge to help keep the bud in place while moving.

Sony
Weight and durability—About 4.9 g each (with M tips); case about 41 g, 47.2 × 47.2 × 32.6 mm; IPX4

IPX4 means resistance to splashing water from any direction; it is not for submersion or swimming.

Sony