Main Features:<br />Fashion and dynamic design， Bluetooth 4.1 sport headset<br />High sound quality as Pro Audio<br />Support listening to music and answering calls<br />Allows you to answer calls conveniently during all your outdoor activities<br />Volume control and song switch function<br />Connect two Bluetooth devices at the same time <br />Answer / end / reject / transfer a call function<br />With built-in rechargeable lithium battery for long time use<br />Compatible with Apple and Andriod smart-phones， tablets， and other devices with Bluetooth service<br /><br /><br /><br /><br /><br /><br /><br /><br /><br />    Specifications<br />General<br />	 Model  : MS-B7                                                  <br />                        Color : Black， White， Red， Blue                                                  <br />                        Wearing type : In-ear with ear hook                                                  <br />                        Function : Answering phone， Multi connection function， Bluetooth， Song switching， Microphone， Voice control， MP3 player                                                	<br />Specification<br />	 Connectivity : Wireless                                                  <br />                        Connecting interface : Micro USB                                                  <br />                        Application : Mobile Phone， Computer， Portable Media Player                                                  <br />                        Plug Type: Bluetooth                                                  <br />                        Talk Time: 3 hours                                                  <br />                        Standby time: 100 hours                                                  <br />                        Charging time: 1.5 to 2 hours                                                	<br />Extended Function <br />	 Bluetooth: Yes                                                  <br />                        Bluetooth version: V4.1                                                  <br />                        Bluetooth distance: W/O obstacles ≤10m                                                  <br />                        Bluetooth protocol: A2DP v1.2， AVRCP v1.4， HFP v1.6， HSP v1.2                                                  <br />                        Bluetooth mode: Hands free， Headset                                                	<br />Dimension and Weight<br />	 Product weight  : 0.019 kg                                                  <br />                        Package weight  : 0.170 kg                                                  <br />                        Product size (L x W x H) : 4 x 4 x 2 cm / 1.57 x 1.57 x 0.79 inches                                                  <br />                        Package size (L x W x H) : 14 x 16.5 x 5 cm / 5.50 x 6.48 x 1.97 inches                                                	<br />Package contents<br />	 Package contents: 1 x Earphone， 1 x Chinese and English Manual， 1 x USB Cable， 4 x Ear Cap                                                	<br /><br /><br /><br />                                                <br />