<1> Listening to songs and phone calls, supporting listening to songs and making calls<2>Caller ID number, last code callback, full smart English tone prompt, power on, pairing, power off, low power, etc.<3> Each time the headset is connected to the phone, the 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 function, tablet, notebook, device, all mobile phones