Specification:
Bluetooth version: V4.1
Protocols: A2DP, AVRCP, HSP, HFP
Battery capacity: 90mAh
Charging Voltage: DC 5V
Standby time: app 180 hours
Talk time:about 4.5 hours
Music time:about 4 hours
Effective distance: 10 meters
Transmission Frequency: 2.4GHz
Weight: 19g

Features:
1.Clear voice, comfortable wearing.
2.HD sound quality.
3. Perfectly compatible with all kinds of Bluetooth product.
4. Bluetooth 4.1 version, more stable and faster transmission.
5. 19g light weight,free and comfortable.
Package included:
1 xBE7 Sports Wireless Earphone
1 x User Manual
1 xCharging Cable