Main Features:<br />Fashion and dynamic design， Bluetooth 4.0 sport headset<br />CSR Bluetooth chip， intelligent dual noise reduction<br />Support connecting 2 smart phones at the same time<br />Control music and calls from the headphone<br />Intelliget voice prompt， simple operation<br />Volume +/- control， Previous /next control， short press for play/pause<br />Built-in rechargeable battery， charging by USB<br />Suitable for devices with Bluetooth function， such as mobile phones， etc.<br /><br /><br /><br />    Specifications<br />General<br />	 Model  : ZS903                                                  <br />                        Color : Black， White， Pink， Blue                                                  <br />                        Wearing type : In-Ear                                                  <br />                        Feature: Sweatproof stereo s headset                                                  <br />                        Function : Voice control， Answering phone， Bluetooth， Song switching， Noise Cancelling， Multi connection function， Microphone， HiFi                                                	<br />Specification<br />	 Connectivity : Wireless                                                  <br />                        Connecting interface : Micro USB                                                  <br />                        Application : Sport                                                  <br />                        Plug Type: Bluetooth， Micro USB                                                  <br />                        Cable length : No                                                  <br />                        Sound channel: Two-channel (stereo)                                                  <br />                        Talk Time: More than 7.5 hours                                                  <br />                        Music Time: More than 6 hours                                                  <br />                        Standby time: More than 100 hours                                                  <br />                        Charging time: Less than 2 hours                                                	<br />Extended Function <br />	 Bluetooth: Yes                                                  <br />                        Bluetooth version: V4.0                                                  <br />                        Powlev: CLASS II                                                  <br />                        Bluetooth distance: W/O obstacles 10m                                                  <br />                        Bluetooth chip: CRS chip                                                  <br />                        Bluetooth protocol: AVRCP， A2DP， HFP， HSP                                                  <br />                        Bluetooth mode: Headset， Hands free                                                	<br />Dimension and Weight<br />	 Product weight  : 0.025 kg                                                  <br />                        Package weight  : 0.14 kg                                                  <br />                        Product size (L x W x H) : 10 x 7.3 x 2 cm / 3.93 x 2.87 x 0.79 inches                                                  <br />                        Package size (L x W x H) : 17 x 10.5 x 5 cm / 6.68 x 4.13 x 1.97 inches                                                	<br />Package contents<br />	 Package contents: 1 x Headset， 1 x English Manual， 1 x USB Cable， 4 x Ear Cap                                                	<br /><br /><br /><br />                                                <br />