Material: PC <br />Main function: support music， phone call <br />Can be connected with two phones at the same time <br />Type: Bluetooth dual channel headset <br />Connect with earphone to realize dual channel music experience <br />Color: black / white / gold<br />Model: LC-B41 <br />Product dimension: 58.5x24.2x16 mm <br />Package dimension: 81x81x30 mm <br />Bluetooth: 4.0 <br />Protocol supported: Headset， HFP， A2DP， AVRCP <br />Effective distance: about 10m <br />Talk time: about 24 hours<br />Standby time: about 30 days <br />Charging time: 3 hours <br />Music playing time: about 20 hours (depends on volume) <br />Notification of the number of the call: YES  <br />Previous/Next song choose: YES <br />How to charge: charged by USB cable connecting with PC or 5V power adapter (adapter not included) <br />Buttons & ports: 1 x ON/OFF， 1 x Volume control， 1 x Answer/hang up， 1 x Micro USB port/earphone jack <br /><br /><br />Notes: <br />1. Please carefully read the user guide before using this headset. <br />2. Bluetooth connection may be affected by the obstacles such as wall and other digital device disturbance. <br />3. There may be disturbance when phone or other device is closing to the headset. This is a normal phenomenon. Just keep the headset away from the disturbing device. <br />4. When the headset cannot be connected with phone or other device， please try again or restart the phone and headset. <br />5. Do not use this headset while charging. <br /><br />1 x Bluetooth headset <br />1 x USB charging cable <br />1 x English manual <br />1 x Ear hook <br />2 x Earbud cover <br />1 x Earphone cable <br />In original package<br /><img src="http://img6.eachbuyer.com/x9/p100/ib374_8.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ib375_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ib375_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ib374_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ib374_7.jpg" />