Stereo Bluetooth Headset                                                                                                     1.Correspond With V2.1+EDR                                                                                             2.Headset Prfile,Handsfree Profile and Advanced Audio Distribution Profile(A2DP)                                                                                                                                        3.Frequency Range:2.4026GHz-2.480GHz                                                                        4.Working Distance Range:10m                                                                                          5.Talk Time:≥10Hours/Charge time:≤3hours                                                                   6.standby time:≥135hours                                                                                                        7.listen music:≥8hours

Main Features:                                                                                                                                 1.The boom microphone can rotate 270 degree for clear communication without echo.
2.Retractable headband with rotatable microphone