Pair up to 2 devices：Yes

Talk/Music Time:≥  20 hours

Standby time:≥  300 hours

Charging Time:≤ 2 hours

Main Chipsets:BlueCore® CSR8635™

Wireless Technology:Bluetooth v4.1

Supported protocol:HFP/HSP/A2DP/AVRCP

Noice reduction:6th Gen CVC™ noise reduction

Wireless Range:10 meters

Mic:1*Mic(MEMS)

Battery:300 mAh ; lithium polymer

Functional switch:MFB/Vol+/Vol-

Standard  Color:Black/Grey

Driver Size:2x  Φ13 mm

CE:Yes

RoHS:Yes