Features:
1. Adjustable ear line desigh ensure the earphone fit on different ears and ensure all-day wearing comfort.
2. Announce coming caller\'s phone number, with voice recognition technology you can just say "Yes" to Answer or say "No" to Reject calls.
3. Sweatproof technology protects this Bluetooth headset from sweat, and coffee spills, so you can wear It in the office or at the Gym.
4. CVC 6.0 noise isolation technology intelligently filter wind or background noises, enable clearer sound experience when calling in crowds, and while listening to music.
5. The 75mAh rechargable battery provides the Longest call and music experience, ideas for wireless communication antwhere any time.
Enhance battery capacity ensure the longest using time(when full charged):

Specification:
Output power: 300MW
Conform to Bluetooth V4.1(HFP, A2DP AVRCP) standard Profile
Transmission distance: 10M (Transmission distance may varies according to different mobile phone or bluetooth device and environmental factors)
Headset battery: 3.7V 75mA
Charging voltage: 5V 500mA