1. Brand new and high quality<br />2. Bluetooth Version: 3.0+EDR<br />3. Wireless music + call with complete remote controls<br />4. Light weight, compact size, very easy to take, clear sound quality will give you the most comfortable wearing experience.<br />5. Unique neck-strap design for easy carrying, durable sport earphones.<br /><br />Size: about 50cm<br />Features: Bluetooth audio player; answer, hang up, reject, redial last call function;<br />I. Key<br />1. Multifunction key: switch ON/OFF function; Play/Pause function; call (when there is an incoming call, short press to answer; After finish the call, short press to end the call; When there is an incoming call, long press for about two seconds and when you hear a beep, the call is rejected; quickly double-click twice to dial the last outgoing calls)<br />2. + key: short press to skip to the previous track, long press to increase volume<br />3. - key: short press to skip to the last track, long press to decrease volume<br />II. Interface: Micro USB, MIC<br />III. Device parameters<br />1. Power supply: DC 5V Micro USB<br />2. Bluetooth version: 3.0 + EDR<br />3. Working distance: about 10 meters (in no interference environment)<br />4. Charging time: about 2 hours<br />IV. Bluetooth connection instructions<br /><br />1 x Headphone<br />4 x Ear muffs<br />4 x Ear cushion<br />1 x USB cable<br />1 x English user manual<br />In original package<br /><img src="//agdetail.image-gmkt.com/m430/233/966/606966233/img/agdetail.image-gmkt.com/233/966/606966233/img/img6.eachbuyer.com/x9/p100/bi635_3.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/233/966/606966233/img/agdetail.image-gmkt.com/233/966/606966233/img/img6.eachbuyer.com/x9/p100/bi633_1.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/233/966/606966233/img/agdetail.image-gmkt.com/233/966/606966233/img/img6.eachbuyer.com/x9/p100/bi633_2.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/233/966/606966233/img/agdetail.image-gmkt.com/233/966/606966233/img/img6.eachbuyer.com/x9/p100/bi633_3.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/233/966/606966233/img/agdetail.image-gmkt.com/233/966/606966233/img/img6.eachbuyer.com/x9/p100/bi633_7.jpg" />