Spec:
Bluetooth,handfree,next/forward song,volume control,pause
Bluetooth version:4.1
Frequency range:2.4-2.48GHz
Transmission distance:Up to 10m
Support:A2DP, AVRCP, HSP,HFP
Frequency response:20-22kHz
Music/Talk time:Up to 5hrs
Standby time:Up to 180hrs
Operating temperature:-10ºC-50ºC.
Accessories:USB cable,two pairs of silicone earmuffs,user manual,neckband
Two ways of waring and four cases optional
