1.Latest 4.2+EDR Bluetooth technology, superior signal transmission, ultra-low power consumption，compatible with iPhone & Android devices.
2.Support automatic CALL ANSWER function, with phone number broadcasting,safer driving.(Press power button one time to answer phone;press the button again to hang-up;press the button twice to redial the most recently phone number directly)
3. The external windproof sponge can effectively realize hands-free answering and hanging up, and the sound fidelity is high
4.Suppor up and down music, volume sound addition and subtraction, playback pause, automatic callback and other functions, easy to operate, easy to use
5.Built in high quality headphone speaker, strong bass, clear mid-range, high-pitched sound.
6.Built in mini USB charging interface for quick and easy charging
7.Built in large capacity lithium battery, multi circuit protection, long standby and working time
8.Sound reminder function,easy to
Specifications: Materials:Plastic Bluetooth name:BT8 Bluetooth version: 4.2+EDR Frequency: 2.402GHz-2.480GHz Transmission Range: 20-30meters(depending on devices) Transmission Distance of Microphone:≤1meter Playback time: 15-20 hrs Standby time:≤240hrs Charging time: ≤2hrs Li-ion battery: 3.7V/500mA Charging Voltage: 5V Distortion:<1% Interval between left and right horn: 44cm Horn wire length:17cm Diameter of the horn：4.1cm Suitable for full face/half face helmets, off-road helmets, flip over helmets