1. Bluetooth version: 5.0
2. Frequency range: 2.402GHz-2.480GHz
3. Transmission distance: about 20-30m
4. Lithium battery capacity: 3.7V/450mAh
5. Charging voltage: 5V
6. Charging time: about 2 hours
7. Standby time: about 360 hours

Features:
1. Suitable for a variety of helmets
2. With FM radio function, automatic search for radio stations, real-time control of road conditions
3. Using Bluetooth 5.0 technology, wider coverage, faster speed and lower power consumption
4. Waterproof and dustproof, easy to use
5. Automatically answer the call after the call, no need to reach out for operation, safe riding
6. Recognize and reduce environmental noise, and the call is clear

packing list:
-Wireless headset x1
-Speaker kit x1
-Type-C charging cable x1
-Earphone clip x1
-Tools x1
-Screw x4
-User manual x1