1. Bluetooth version: V5.0
2. Battery: 3.7V / 250mAh, rechargeable polymer lithium ion battery
3. Two-channel stereo output
4. Automatic answering of incoming calls, support hands-free function, making riding safer and communicating with friends more convenient
5. Convenient and simple music operation, convenient song switching and volume adjustment during cycling
6. Easy to use
2. Battery: 3.7V / 250mAh, rechargeable polymer lithium ion battery
3. Two-channel stereo output
4. Automatic answering of incoming calls, support hands-free function, making riding safer and communicating with friends more convenient
5. Convenient and simple music operation, convenient song switching and volume adjustment during cycling
6. Easy to use