1. Bluetooth version: 5.0
2. Frequency: 2.402GHz-2.480GHz
3. Bluetooth distance: about 10m-20m (depending on the environment around the device such as obstacles)
4. Microphone transmission distance: within 1m
5. Battery capacity: 3.7V / 180mA
6. Playing time: about 8 hours
7. Charging voltage: 5V
8. Charging time: about 2 hours
9. Bluetooth pairing name: M8
10. Weight: about 57.2g

Features:
1. Automatically answer incoming calls, easy to use and safer to ride
2. Press and hold the power button for 2s to turn on the voice assistant
3. Using Bluetooth 5.0 technology, wide coverage, fast speed and low power consumption
4. Can connect 2 mobile devices at the same time, freely choose the device to switch, can navigate, listen to music, answer the phone
5. Wide range of applications, such as cycling, skiing, mountaineering, etc.
6. Suitable for all kinds of helmets, easy to install

Packing list:
- Host x1
- Charging cable x1
- Manual x1
- Sticker x2