- Bluetooth version:5.3
- Transmission distance: 10m
- Battery capacity: 400mAh
- Frequency response:20Hz~20kHz
- Sensitivity: 105±3db
- Speaker diameter: 40mm
- Call playback time: about 7-10 hours
- Standby time: about 120h
- Charging time: about 2h
- Built-in microphone: YES
- Usage mode:Bluetooth/TF card mp3 mode（Maximum Support 32g）
- Charging voltage:5V-1A
- Song switching: Support
- Volume adjustment: Support
- Answer the call/hang up the call: Support
- Audio I/O interface:Support
