Portable Helmet Smart Bluetooth Riding Audio
- New Design, easy to install with two way (3M adhesive and velcro) .
- Bluetooth 4.0, connected within 33ft/10m range, wonderful stereo sound .
- Double noise reduction microphone makes you hear/speak clearly .
- Answer call automatically after 3 secs, no need to answer the phone .
- Lithium battery 400mAh, you can use it in 6 hours .