Mini, lightweight, compact, ultra-slim and sleek design. High quality, super bass and outstanding sound. Adopt mobile enhancement technology and Bluetooth wireless technology. Built-in microphone. Only one multifunction button to answer, refuse, hang up and redial. Allow you to answer the incoming call freely and conveniently. Both headset and hands-free profile integrated. Let you enjoy outstanding sound and music anytime and anywhere. Compatible with iPhone 2G/3G/3GS/4G. Compatible with all Bluetooth enabled mobile phones. Comfortable to wear on the left or right ear. Come with an ear loop for easy carrying with you on the go. Support Bluetooth V2.0. Transmission distance: 10M.