【New Technology】Latest 4.2+EDR Bluetooth technology, superior signal transmission, ultra-low power consumption，compatible with iPhone & Android devices. | 【Good sound quality】Built-in high-quality headphone speaker, strong bass, clear mid-range, high-pitched sound. Built-in high-quality -interference microphone, external windproof sponge, can effectively realize hands-free answering, hang up the phone, high sound fidelity | 【Power Source】Built-in mini USB charging interface for quick and easy charging. Built-in large capacity lithium , multi circuit ion, long standby and working time. Suppor up and down music, volume sound addition and subtraction, playback pause, automatic callback and other functions. Sound reminder function,easy to set the device according to sound remind. | 【Function】Auto-repair with memory function.(if your device is the latest recent paired device,the headset will be automatically re-paired with your device when the device open it again). Support automatic CALL ANSWER function, with phone number broadcasting,safer driving. | 【Application】Excellent performance for Full-face helmet/Half-face helemt，off road helem，flip up helem，haif face helem ect.