Main Features: <br />M2 wirless Bluetooth v4.1 headset<br />NFC connection up to 10 meters ( no obstacles )<br />FM 10 frequency range: 87 - 108MHz<br />TF card capacity: 64GB ( TF card is not included )<br />3.5mm audio can access without electricity<br />Three mode: Blutooth mode， TF card mode， audio line mode ( wired )<br />Charging time: More than 4 hours when the power is very low<br />Comes with a USB charging cable and 3.5mm audio cable<br />Colors: Gold， green， brown， silver<br /><br />Use time: <br />Bluetooth mode: About 20 hours of talk time， 8 hours music time<br />TF card mode: About more than 12 hours<br /><br /><br /><br />    Specifications<br />General<br />	 Color : Gold， Silver， Green， Brown                                                  <br />                        Wearing type : Headband                                                  <br />                        Function : Answering phone， Song switching， NFC connection， Bluetooth， FM function， MP3 player                                                	<br />Specification<br />	 Headset type: Dynamic                                                  <br />                        Connectivity : Wired and Wireless                                                  <br />                        Connecting interface : Micro USB， TF Card， 3.5mm                                                  <br />                        Application : Portable Media Player， Mobile Phone                                                  <br />                        Sound channel: Two-channel (stereo)                                                  <br />                        Working time: More than 12 hours                                                  <br />                        Talk Time: More than 12 hours                                                  <br />                        Music Time: More than 12 hours                                                  <br />                        Charging time: More than 4 hours                                                	<br />Extended Function <br />	 FM radio: Yes                                                  <br />                        Bluetooth: Yes                                                  <br />                        Bluetooth version: V4.1                                                  <br />                        Powlev: CLASS II                                                	<br />Dimension and Weight<br />	 Product weight  : 0.170 kg                                                  <br />                        Package weight  : 0.45 kg                                                  <br />                        Package size (L x W x H) : 23 x 18 x 9 cm / 9.04 x 7.07 x 3.54 inches                                                	<br />Package contents<br />	 Package contents: 1 x M2 Wirless Bluetooth V4.1 Headset， 1 x USB Cable， 1 x 3.5 Audio line， 1 x Chinese and English User Manual                                                	<br /><br /><br /><br />                                                <br />