Main Features:<br />Built-in Microphone， support hands free calls<br />Enjoy hands-free phone calls and music in the car， making your driving or trip more elegant and safer<br />Compatible with all Bluetooth enabled digital devices<br />Built-in replaceable lithium battery， extending the playing time for outdoor use<br />Conveniently charged via USB cable<br />Ultra pocket size， perfect for travel， outdoor activities etc.<br /><br />    Specifications<br />Primary Features<br />	 Design: Portable， Fun， Mini， Sport                                                  <br />                        Supports: Bluetooth， Hands-free Calls， Volume Control， Microphone， Loudspeaker                                                  <br />                        Functions: Stereo， Songs Track                                                  <br />                        Compatible With: Laptop， Mobile Phone， Tablet PC， PC， iPod， MP3， iPhone， MP4， PSP， MP5                                                  <br />                        Connection: Wired， Wireless                                                  <br />                        Interface: Micro USB                                                  <br />                        Audio Source: Bluetooth Enabled Devices                                                  <br />                        Color: Blue， Black， Green， White， Red                                                	<br />Technical Parameters<br />	 Bluetooth Version: V2.1+EDR                                                  <br />                        Transmission Distance: W/O obstacles 10m                                                	<br />Other Parameters<br />	 Power Source: USB， Battery                                                  <br />                        Charging Voltage: DC 5V                                                  <br />                        Operating Range: 10m                                                	<br />Dimension and Weight<br />	 Product Weight: 0.037 kg                                                  <br />                        Package Weight: 0.085 kg                                                  <br />                        Product Size (L x W x H): 3.7 x 3.2 x 3.2 cm / 1.5 x 1.3 x 1.3 inches                                                  <br />                        Package Size (L x W x H): 6.8 x 6.8 x 5.0 cm                                                	<br />Package Contents<br />	 Package Contents: 1 x Speaker， 1 x USB Cable， 1 x Sling， 1 x User Manual                                                	<br /><br /><br /><br />                                                                                            <br />