It is not quite a safe behavior to anwser the phone while driving， no mention toriding a motorcycle at high speed. Then this helmet headset is specially design forthose riding enthusiasts. It enables to answer calls and enjoy music completely handsfree， providing a safe and pleasure trip. Also a good kit for skiing sports.Attention: Only for calling， can't not be used for musicFeatures: 1. Wireless bluetooth headset， no cords tangling 2. Lightweight and portable， easy to install 3. Available to various kinds of helmets 4. Bluetooth standard: V3.0 + EDR 5. DSP noise-canceling feature 6. Up to 6 hours talking timeSpecification: 1. Size: 285*85*40mm 2. Weight:0.094kg 3. Material: ABS plastic 4. Charging time: about 2 hoursPackage contents1x Bluetooth headset1x Charging cable 1x User Manual