Bluetooth version:Bluetooth 4.2

Support protocol:A2DP/AVRCP/HFP/HSP

Bluetooth chip:QCC3020/BK/CSR

Working frequency:20HZ-20KHZ

Horn diameter:10mm

Speaker Impedance:32 ohm

Speaker power:7mW

Battery:lithium polymer battery,260mAH

Music playback time:22 Hours

Call time:24 Hours

Standby time:30 Days

Charging time:3 Hours

Charging port:USB

Wireless transmission distance:10 meters (open space)built-in microphone

Microphone Sensitivity:-46dB

Headphone Type:In-Ear

IOS device power display

Supports multi-point connections

Support hands-free function

Main material:PC/ABS

Surface treatment:UV spray +electroplating

Weight:10g

Dimensions(L*W*H):59*16*10.5mm