Headphone material: plastic
Channel: 2
Bluetooth version: 5.0
Color classification: X9Plus battery life version [thousand yuan noise reduction + 3500mAh charging bay (rechargeable mobile phone) + Bluetooth 5.0] X9 portable version [thousand yuan noise reduction + 700mAh charging bay + Bluetooth 4.2]
Waterproof performance: IPX7
How to use: In-ear
Whether single and double ears: bilateral
Transmission radius: 10m
Connect the headset and playback device connection method: Bluetooth connection