Bluetooth V4.1 technology: Super easy and fast paring with your smartphone or other Bluetooth device. Working range up to 10 meters</br>Decent sound quality: Allows you to have a clear wireless conversation with others. Crystal clear and nature voice</br>Ergonomically designed & doesn't fall out: Premium materials make the wireless earbud lightweight and comfortable fit with soft earbud & hook</br>Good battery life & LED battery status indicator: Up to 5 hours talk time, up to 4.5 hours music play time</br>Easy to use: Press the button on the device lets you manage volume, pause, forward/back & answer calls</br></br>Product Description</br></br><br><b>Decent Range</b><br> Bluetooth V4.1 technology offers you stable signal and about 10-meter working distance, just enjoy music freely anytime and anywhere without the bound of wire. <br> <br><b>Adjustable and Removable Ear Hook</b><br> The ear hook allows to adjust the angle and fit this headset in right or left ear , providing great convenience for users.<br> <br><b>Good Sound Quality </b><br> HD sound for high-fidelity music and clear speech, you can begin enjoying high quality HD sound instantly. <br> <br><b>Specification:</b><br> Bluetooth Version: V4.1<br> Working Range: Max10 meters<br> Talking Time: About 5 hours<br> Music Time: About 4.5 hours<br> Charging Time：About 2 hours<br> <br><b>What's in the box:</b><br> An Ear-hook<br> USB charging cable<br>User Manual <br></br><br/>http://www.amazon.com/gp/product/B01HO01XPY