Main Features:<br />Full application for Bluetooth-enabled devices， including mobile phones， tablet PCs， notebook computer system<br />20 hours battery life <br />Support aptx <br />Over 20M transmission distance<br /><br />    Specifications<br />Specification<br />  Feature: Portable                                                  <br />                        Interface: USB2.0                                                  <br />                        Product Weight: 0.066 kg                                                  <br />                        Package Weight: 0.212 kg                                                  <br />                        Product Size (L x W x H): 7.5 x 5.2 x 1.5 cm / 3.0 x 2.0 x 0.6 inches                                                  <br />                        Package Size (L x W x H): 15.5 x 15 x 3.5 cm                                                  <br />                        Package Contents: 1 x X400 Bluetooth Receiver， 1 x RCA Line， 1 x USB Charging Cable， 1 x Power Adapter， 1 x User Manual                                                 <br /><br /><br /><br />                                                <br />