Model Number: WY-086 Brand Name: WANYI Key Specifications/Special Features: 1. Wireless 2.0+EDR international standard, you can adjust the volume directly through the stereo2. Supports speaker-phone, built-in microphone, to bring clear calls for you3. Pure music, perfect to enjoy4. Lasting power, long battery life5. Simple and easy to operate key design Transmission distance10m Rated power 3W+3W Play time 3-4 hours S/N 80db Distortion 1%w1KHz Charging time 5-8 hours Color Steel gray, blue, rose gold, red, gold, white, silvery and black