Sony INZONE H9 II: WH-G910N · WHG910N/B, black
Sony WH-CH720N: WH-CH720N closed over-ear wireless headphones; black, white, blue and pink. The WH-CH710N (previous generation), WH-CH520 (no ANC) and the WH-1000X series are separate models.
| Specification | Sony INZONE H9 II | Sony WH-CH720N |
|---|---|---|
| Release year | 2025 | 2023 |
| Release year | 2025 Sony | — |
| Design | Over-ear, closed-back; adjustable suspension headband Sony | — |
| Weight | Approximately 260 g without microphone Sony | About 192 g Sony |
| Microphone weight | Approximately 13 g including windscreen Sony | — |
| Microphone | Detachable boom; mute button and red indicator Sony | — |
| Gaming connection | 2.4 GHz through USB-C receiver Sony | — |
| Receiver mode | PC / OTHER switch Sony | — |
| Bluetooth | 5.3; Class 1 Sony | — |
| Codecs | SBC, AAC; LC3 through LE Audio Sony | — |
| Simultaneous connection | USB receiver + Bluetooth phone Sony | — |
| Analog connection | 3.5 mm cable; powered or passive operation Sony | — |
| When the cable is inserted | Bluetooth and receiver-based wireless functions are disabled Sony | — |
| Noise control | ANC and ambient sound mode; unavailable passively Sony | — |
| Game/chat balance | Only with the receiver in PC mode Sony | — |
| Volume control | Physical volume dial during wireless use Sony | — |
| PC software | INZONE Hub; unavailable through a Bluetooth connection Sony | — |
| Phone app | Sony Sound Connect through Bluetooth Sony | — |
| Charging | USB-C; full charge approximately 3.5 hours, condition dependent Sony | — |
| Use while charging | Supported Sony | — |
| Battery | Built-in rechargeable lithium-ion Sony | Music up to 35 hours with NC on, 50 hours off; calls up to 35 hours NC on, 40 hours off; about 3.5 hours to charge over USB Sony |
| Wired frequency range | 5 Hz–20 kHz with power off; not a wireless measurement Sony | — |
| Impedance | 440 Ω powered / 21 Ω passive at 1 kHz Sony | — |
| Operating temperature | 0–40 °C Sony | — |
| Water protection | Not waterproof Sony | — |
| Box contents | USB-C receiver, USB-A–USB-C charging cable, analog cable, microphone and soft pouch Sony | — |
| Noise cancelling | — | Active noise cancelling with Integrated Processor V1 and Dual Noise Sensor; Ambient Sound mode Sony |
| Driver and frequency | — | 30 mm dynamic driver; 7–20,000 Hz (JEITA); 20–20,000 Hz over Bluetooth (44.1 kHz) Sony |
| Bluetooth and codecs | — | Bluetooth 5.2; A2DP, AVRCP, HFP, HSP; SBC and AAC; about 10 m range Sony |
| Multipoint | — | Connection to two Bluetooth devices at the same time Sony |
| Wired use | — | Detachable cable of about 1.2 m with gold-plated L-shaped 3.5 mm plug; passive operation Sony |
| Microphone and processing | — | Precise Voice Pickup beamforming mic; wind noise reduction structure; DSEE Sony |
| Impedance and sensitivity | — | NC on 325 Ω / off 31 Ω (1 kHz); NC on 108 dB/mW / off 99 dB/mW Sony |