<p>Function: Noise-Cancelling, Sports, Volume Control, DJ, With Microphone, Driving.</p> <p>Built-in Li-ion Battery</p> <p>Talk time:7 hours</p> <p>Music time:7 hours</p> <p>Bluetooth: V4.0</p> <p>General Use:Mobile Phone</p> <p><b>Package Included:</b></p> <ul> <li>1x Bluetooth 4.1 Earphone</li> <li>1x Charging Cable</li> <li>1xManual</li> </ul>