Featuresbluetooth headset compatible with bluetooth enabled devices such as iphone ipad htc lenovo samsung tablet pc etcbluetooth 21 edr transmission distance up to 10 metersbuilt in microphone allows you to have wireless telephone conversationshigh quality rich sound good choice for listening to music watching movie talking on the phone etcbuild in rechargeable li battery charge via usb cable within 2 hoursstandby time up to 120 hours music talk time about 45 hoursin