* 100% brand new, high quality. * Small size and light weight, easy to carry. * Built-in 500mA large capacity rechargeable battery, CSR8635 imported British chip. * The latest 4.1+ EDR Bluetooth technology, superior signal transmission, ultra-low power consumption, compatible with iPhone and Android devices. (Press the power button once to answer the call. Press the button again to hang up the call.) * Built-in high-quality anti-interference microphone, external windproof sponge, can effectively answer and hang up the phone hands-free, with high fidelity. * Supports functions such as up and down music, volume increase and decrease ringtones, play pause, automatic redial, etc., easy to use and easy to use. * Built-in mini USB charging interface, fast and convenient charging. * Built-in large-capacity lithium battery, multiple circuit protection, long standby and working time. * Toner reminder function, easily set the machine according to the toner reminder. * Automatic repair with memory function. (If the device is the last paired device, the headset will automatically re-pair with the device when the device is turned on again.) * Suitable for full helmet/half helmet, off-road helmet, flip helmet, etc. Specifications: Material: Plastic Color: Black Bluetooth Name: BT12 Bluetooth Version: 4.1 + EDR Support: Stereo Music (A2DP) Frequency: 2.402GHz - 2.480GHz Transmission Range: 20-30 meters (Depending on the device) Microphone Transmission Distance: 1 meter Play Time: 15 hours Standby Time: 240 hours Charging Time: About 3 hours Lithium-ion Battery: 3.7V / 500mA Charging Voltage: 5V Waterproof Rating: IP45 or so Range between speakers: About 43cm Speaker Cable Length: About 17cm Speaker Diameter: About 4.1cm Net Weight: 127g Note: 1. The helmet headset must be fully charged (about 2 hours) before first use. 2. The LED indicator will turn solid red while charging and go off when the battery is fully charged. 3. The headset cannot play music or answer calls while charging. Package Included: 1x Helm Bluetooth Headset 1x USB Cable 1x User Manual 1 Pack of Accessories