Quantity: 1High fidelity sound quality: High quality audio output，perfect sound effect.Music Control: Easy control of volume and song selections.Silicon microphone noise reduction: Silicon microphone noise reduction technology， to ensure clear communication.Specificaion:Bluetooth version: buletooth V2.0+EDRSignal distance: About 10 metresCompatible for Android， for iphone，? 99% of bluetooth mobile phoneTo switch the headset power on/off:1.TO power on:press and hold answer/end key for about 3 seconds until flashes blue2.To power off:press and hold for about 6 seconds，goes offHow to use:1.Press the power button2.Then turn on the Bluetooth function of you cellphone and search devices3.Pair with this device and input the code "0000"(If asked)4.Pair successfully when indicator stop flashing?? 5.Bluetooth Connection:Please long press the button until you can see the blue and red light alternately， then connect bluetooth device: mini-1Package Content:1X Bluetooth Earphone1X Instructions1X Charging Cable