Specifications:

Bluetooth Version 4.1
CSRBC8610 Chipset
Micro-USB charging port
Support HFP, HSP, and A2DP
Connects with one bluetooth device
Operating range: Up to 30ft (10m)
80mAh rechargeable battery
Talk time: 6 hours
Standby time: About 1~2 hours
iPhone battery indication
CVC echo and noise cancellation feature
Supports voice prompt for MMI: Power on / pairing / connecting / battery low / power off