The Cwxuan BT12B Sports Bluetooth 4.1 Air Conduction Spiral Cord Stereo In-Ear Earphones Headset features air conduction cords that effectively block radio wave inside , protecting you against harmful radiation. It uses Bluetooth 4.1 to stream audio from smartphone. CNC precision machined magnesium alloy speaker unit reproduces high quality stereo sounds for a higher level of listening pleasure. Inbuilt microphone is sensitive enough to pick up voice clearly. Well-positioned control buttons allow for easy control over calls and music play. Ergonomic silicone earbuds stay comfortably in your ears. Click and order now!<!--Features --><p>FEATURES</p><ul><li> Air conduction cords effectively block radio wave inside and protect the wearer against harmful radiation</li><li> Bluetooth V4.1, stable connection, low power consumption</li><li> CNC precision machined magnesium alloy speaker unit reproduces high quality stereo sounds</li><li> Inbuilt microphone is sensitive enough to pick up voice clearly</li><li> Well-positioned control buttons allow for easy control over calls and music play</li><li> Ergonomic silicone earbuds stay comfortably in your ears</li><li> Reduce radiation by more than 1000 times compared with directly using cellphone, more than 60 times compared with ordinary headphones, and more than 20 times compared with a Bluetooth headset </li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Material</td><td width="365"> ABS </td></tr><tr><td width="131"> Support System</td><td width="365"> Universal </td></tr><tr><td width="131"> Headphone Style</td><td width="365"> Sound Conduction Acoustic Air Spring Tube, w/ Mic, Music Playing, Radiation Isolation </td></tr><tr><td width="131"> Microphone</td><td width="365"> Yes</td></tr><tr><td width="131"> Cable Length</td><td width="365"> 80 cm</td></tr><tr><td width="131"> Color</td><td width="365"> Black </td></tr><tr><td width="131"> Dimensions</td><td width="365"> (36.22 x 0.47 x 0.47)" / (92 x 1.2 x 1.2)cm (L x W x H)</td></tr><tr><td width="131"> Weight</td><td width="365"> 0.67oz / 19g </td></tr></tbody> </table><!--Package Includes --><p>Package Includes</p><ul><li>1 x Earphone</li><li>1 x USB Cable</li><li>1 x Chinese / English User Manual</li><li>4 x Earbud Caps </li></ul><!--Extra Info --><!--produts_compatibility -->