1、BLUETOOTH 5.0: Helmet headset's bluetooth 5.0 provides faster data transfer, lower latency and wider transmission range, bluetooth connection is stable and will not disconnect. Bluetooth connection for intercom calls takes only 5 seconds for one touch operation. It can be adapted to the mainstream cell phones on the market. 2、SINGLE OR DOUBLE USE: Support double partner real intercom, at any time to share the pleasure of riding. Can play music and answer the phone when high speed riding. Let you hear music and talk clearly while riding. Adopt DSP noise reduction technology. With bass and treble effect. 3、40MM GRAPHENE VIBRATION UNIT: The unique structure of the 40mm graphene diaphragm of the motorcycle bluetooth headset ensures excellent sound quality for music and calls, HiFi stereo sound. The microphone's double noise reduction and windproof sponge make calls clearer. Helmet Bluetooth can automatically answer phone calls, making your ride safer. 4、LARGE 900MAH BATTERY, TYPE C CHARGING: The wireless motorbike intercom has a built in 900mAh battery, which can support up to 35 hours of continuous work and 100 hours of standby time on a single charge. You can use one Type C port on the radio for sound, data transfer and charging, avoiding messy cable connections. 5、IP67 WATER RESISTANCE AND DUST RESISTANCE: The motorcycle bluetooth headset is IP67 water resistance and can handle harsh weather conditions such as dust, rain, storms, snow and cold temperatures. Scientifically designed to fit perfectly into most face showing, modular and full face helmets. 6、EASY TO INSTALL: The helmet headset can be installed inside the helmet in 2 minutes, adhesive is the connection, clip on installation. Adhesive base hook face hook and loop fastener. with flexible, removable metal clips. Can be removed and mounted to another helmet at any time. Suitable for different types of helmets. Item Type: Motorcycle Bluetooth Headset Material: ABS Battery: Polymer Lithium Ion Battery (Built In) Capacity: 900mah Connection: BT5.0, EDR Microphone Transfer Distance: ≤ 1m/3.3ft Use Range: Approx. 300m/984.3ft Operating Time: 35h Standby Time: 35h Speaker: 40mm/1.57in Tuning Speaker Water Resistance: IP67 Water Resistance Function: Can Connect 2 Cell Phones at the Same Time, Two Person Call, Support Voice Helper, Intelligent Noise Reduction, Power Broadcasting 1 x Host 1 x Earphone 1 x Earphone Clip 2 x Color Bar 1 x USB Cable 1 x Instruction Manual