Sports Handfree Bluetooh Wireless HiFi Stereo Headphone Headset Earphone Earbud<br>Feature:<br>Sporty look and design.Easy and convenient for you to operate this wireless Bluetooth earphone with a 3D wheel button when you are doing sports， driving a car and so on.You can change your music and adjust the volume with the button of this earphone.High elastic and soft back-circle beam.Two sizes of silicone earmuffs can perfectly fit your ears and you can choose the size that fit your ears better.Innovative double damping balance technique can perfectly restore the original sound.Perfect attachment with wider range of application.Support various systems of smart phones and even computers.Supports Bluetooth 3.0 technology.Superb stereo sound effects.Built-in microphone for hands-free calling.Long standby time which is up to 100 hours.A piece of USB charge cable is included.<br>Specification: <br>          Type       Bluetooth headset           Color       Black\/red\/gold\/blue           Bluetooth Version       V3.0 + EDR           Frequency Response       2.102GHz ~ 2.480GHz           Transmit Range       Up to 10m           Microphone       Yes           Volume Control       N\/A           Sensitivity       -80dm           Channel       79 channels           Battery       3.7V 150Am\/h polymer lithium battery           Charging power source       5V (computer USB)           Charging Time       1 ~ 2 hours           Working time       about 6 hours           Standby Time       about 100 hours           Wireless emission standard       class 2           Compatibility       cell phones with Bluetooth 3.0           Earphone cable length       42cm   <br>Operation instruction:<br>\u25cf Bluetooth pairing:Step 1: Long press the wheel button of your earphone for about 5 ~ 8s to open the Bluetooth until the blue and red lights flash alternately.Step 2: Open the Bluetooth of your cell phone to pair the Bluetooth with the earphone.Step 3: Then you can listen to music and have a call with this wireless Bluetooth earphone when you are doing sports or do other things.\u25cf If you want to change your music， just slide the button towards the left of right for a short time.\u25cf If you want to stop the music， press the button  for a short time.\u25cf If you want to change the volume of the music， press the button towards the left of right for a little bit long time.\u25cf If you want to turn off the Bluetooth of your earphone， press the button for a little bit long time until the lights flash quickly.<br>Package included:<br>1 x Wireless Bluetooth Earphone (NOTE: This item come without retail box)1 x USB Charge Cable<br>Detail Pictures: