Bluetooth version: V4.1
Frequency range: 2.4GHz-2.48GHz                        
Operating distance: Up to 10m (free space)
Bluetooth profiles: A2DP, AVRCP, HSP, HFP
Standby time: Up to 180hrs
Talk/music playtime: Approximately 4 -5hours
Charging time: Approximately 2 hours
Frequency response: 20Hz-20kHz
Operational temperature: -10 to 50°C
Noise reduction: CVC6.0
Accessories: 1*USB cable, 1*manul, 6*ear rubber, 6*ear hook
Packing: Each in Gift box
Stock color: Green, White, Black, Red, Yellow

Function:Accept/Finish/Reject/Transfer Call, call waiting, recall, sound off, Volume +/-, multipoint connecting, Music pause/play, Noise reduction, Pre/Next song switch, Take photo by yourself