● HD stereo music sound function
● Volume control and song switch function
● Connect two Bluetooth devices at the same time
● Enhanced audio and bass response
● Vibrating call alert
● Audible battery status alert
● Microphone mute
● Audible pairing assistance
● Auto - reconnect
● Support Chinese and English voice prompt


Specifications:
Bluetooth version: Bluetooth V4.0
Bluetooth profile: Support HFP1.6， HSP1.2， AVRCP1.4， A2DP1.2
RF range: About 10 meters
Battery: 3.7V / 195mAh Li-polymer
Listen music: Up to 10 hours
Talk time: Up to 15 hours
Standby time: Up to 500 hours
Charge time: About 2 hours
Suitable for devices with Bluetooth function， such as mobile phones， etc.