BT-790 Bluetooth 4.2 Hanging Neck Design Bluetooth Headset, Support Music Play & Switching & Volume Control & Answer(Black)

1. Bluetooth Version: Bluetooth V4.2 2. Transmission distance: 10 meters 3. Use time: 6-8 hours 4. Standby time: 4-6 minutes automatic shutdown 5. Battery: 85 mAh rechargeable lithium battery 6. Functions: adjusting volume, switching songs, answering calls,call rejection, hangup, bluetooth playback, telephone replay,broadcast, bluetooth return, voice tips, power display, inform the caller number, intelligent shutdown, plain English broadcast