Sports Bluetooth headset function:      1. Listening to songs and phone calls, supporting listening to songs and making calls,      2, play / pause answer / reject the up and down song size sound3. When the Bluetooth headset is connected to the phone and turned off, the Bluetooth headset will automatically connect back to the phone when it is turned on, which is convenient and faster.      4, intelligent compatibility: support all mobile phones with Bluetooth, tablet, notebook, sing, QQ music, movies, etc., 95% of the universal mobile phone      5, transmission distance: 10 meters Noise reduction: DSP intelligent noise cancellation technology