Main Features:<br />Supports Bluetooth V3.0 + EDR and Bluetooth 2.1 / 2.0 / 12， and 11 backward compatibility<br />Frequency range: 2402MHz - 2480MHz<br />Support AVRCP 1.0， A2DP 1.0， hands-free profile 1.5， headset profile V1.1<br />Operating range: 10m - 20m ( depending on environment )<br />Can answer calls<br />Super low power charge standby<br />LED indicator<br />Micro USB charging <br />Built-in high capacity li-polymer battery<br /><br />    Specifications<br />General<br />	 Color: Black                                                  <br />                        Interface: 3.5mm Audio                                                	<br />Dimension and Weight<br />	 Product Weight: 0.034 kg                                                  <br />                        Package Weight: 0.109 kg                                                  <br />                        Product Size (L x W x H): 5.0 x 5.0 x 1.3 cm / 1.97 x 1.97 x 0.51 inches                                                  <br />                        Package Size (L x W x H): 14.2 x 9.2 x 2.1 cm / 5.58 x 3.62 x 0.83 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Bluetooth Receiver， 1 x USB Cable， 1 x English User Manual                                                	<br /><br /><br /><br />                                            <br /><br />                                                <br />