Ergonomic and sweatproof in-ear design. Fit both ears comfortably.<br />Produce high-fidelity stereo music of CD level and crystal clear sound.<br />Enjoy outdoor activities freely without disturbance of twining cords.<br /><br />Battery life is up to 6 hours for playing music non-stop. Hand-free phone calls available.<br />Universally compatible with all bluetooth-enabled devices.<br /><br />Specifications:<br /><br />Model: Runner X3<br /><br />Material: metal<br /><br />Color: black<br /><br />Weight: 15g<br /><br />Length: 60cm<br /><br />Buttons: ON/OFF; Volume +/- (long press to switch songs)<br /><br />Interface: micro USB<br /><br />Bluetooth Version: V4.0<br /><br />Protocols: A2DP, AVRCP<br /><br />Transmission Distance: 10m (without obstacles)<br /><br />Power Output: 10mw<br /><br />Power: DC 5V<br /><br />Battery: 50mAh<br /><br />Play Time: 6 hours<br /><br />Talk Time: 4 hours<br /><br />Standby Time: 200 hours<br /><br />Charge Time: 2 hours<br /><br />Response Frequency: 20-20000Hz<br /><br />Bluetooth Earphones x 1 pair<br /><br />Ear Plugs x 2 pairs<br /><br />USB Cable x 1<br /><br />User Manual x 1<br /><br />In original package<br /><img src="http://img6.eachbuyer.com/x9/p100/ci159_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ci159_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ci159_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ci159_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ci159_6.jpg" />