Mencom bluetooth Receiver 3.5mm Mini Wireless Car Kit Hands Free Jack AUX With Mic For Speaker HeadphoneFeature:Using the latest bluetooth chipest V4.1.High sensitivity microphone to ensure high quality calling conversation.Innovative interesting very small bullet design.Convert any Aux port to bluetooth such as Car,Speakers and headphones.Specification:BrandMencomModel006bluetooth VersionV4.1Battery Capacity55mACharging VoltageDC 5VCharging Timeup to1.5hoursWorking Timeup to 5 hoursConnection Range10mHeadphone Jack3.5mmOperation Introductions:1.Basically:Power On:Press MFB for 3s.Power Off:Press MFB for 3s.Pairing Mode:Press MFB for 6s.(on power off status)(remember that do NOT release your hand in 3s when the Led light flashing only one time)Exit Pairing mode:Device will exit pairing after 150s if no actions.Shut Down:Automatically shut down if no connection in 10minutes.2.Calling Conversation:Answer Phone Calling:Press MFB 1 time to answer call.Reject Phone Calling:Press the MFB for 1s to reject the call.Hang up the phone:Press the MFB 1 time to end conversation.Cancel dialing:Press MFB 1 time to cancel the dialing.Redial Last phone:Press MFB 2 times to re-dial last phone number.3.Streaming Music:Pause music:Press the MFB button 1 time.Play music:Press the MFB button 1 time.Package Included:1 X bluetooth Receiver1 X Manual