Bluetooth Version:V4.1+EDR Stereo
Bluetooth profiles Supported:A2DP,HSP,HFP,AVRCP
Frequency:2400-2483.5MHz
Frequency Response:20Hz~20KHz
Sensitivity:110dB
SPK :Ø40MM+Ø23MM
Effective Distance:33FT/10M
Battery:300mAh Li-Polymer
Talk Time:About 15 hours
Music Playing Time:About 15 hours
Standby Time:About 300 hours
Nominal Charging Time:2 hours
Power Display:IOS
Voice Promts:English
Chipset: CSR8635 (Prototype)