Mini, lightweight, compact, ultra-slim and sleek design. Built-in microphone. Buttons: previous song and next song One multifunction button to answer, redial, pause and play. Allow you to answer the incoming call freely and conveniently. Both headset and hands-free profile integrated. Can be used as a mono headset with hook and also used as a stereo earphone. Let you enjoy outstanding stereo sound and music anytime and anywhere. Compatible with all Bluetooth enabled mobile phones. Comfortable to wear on the left or right ear. Come with an ear-bud earphone for enjoying the music freely and conveniently. Come with an ear hook for easy carrying on the go. Support Bluetooth V2.0. Transmission distance: 10M. Charging time: 3-4 hours. Talking time: more than 6 hours. Standby time: up to 100 hours.