1. Product Name:Bluetooth earphone
2. Color: Charm black, Chinese red, vast blue, space silver, large amount of bargaining, three pieces of local gold, three buttons silver, three pieces of red, three pieces of black, ivory white
3. Bluetooth version: V4.1+EDR is compatible with V4.0, V3.0, V2.1, V1.1
4. Transmission power: Class2
5. Transmission frequency: 2.4GHz
6. Transmission distance: 15 meters or more
7. Battery capacity: 75 mAh
8. Talk time: 6-8 hours
9. Play time: 4-6 hours
10. Standby time: 120 hours
11. Features: call function, support music, painless, ear-mounted stereo, unilateral hands-free, ultra-small mini, light and compact