IP67 waterproof design:Adopting advanced waterproof structure design, the structure is tight and not afraid of dust and rain, rain or shine. The adopts a detachable structure design. The back clip is designed with stainless steel spring clips for easy installation. Using Bluetooth 5.0 technology, transmission, ultra-low power consumption. The built-in high-quality anti-interference microphone can effectively realize hands-free answering and hanging up calls. Name:helmet bluetooth headset Model:BT10B Bluetooth version: 5.0 Battery capacity:1500MA Battery life:50-60 hours Waterproof grade:IPX67 Charging time:4-5 hours Standby time:260 hours Bluetooth distance:10-15 meters Colour:Black Material:ABS Package Contents: 1 * 1 * Charging Cable 1 * Speaker Cable Set 2 * Spring Back Clip 6 * Nylon Sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.