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 />Support AUX external audio input<br />Built-in replaceable lithium battery， extending the playing time for outdoor use<br />Conveniently charged via USB cable<br />With tilt holder design， convenient to use<br />Ultra pocket size， perfect for travel， outdoor activities etc.<br /><br />    Specifications<br />Primary Features<br />  Design: Stylish， Mini， Multifunctional， Portable， Fun                                                  <br />                        Supports: Hands-free Calls， Volume Control， Microphone， Loudspeaker， Bluetooth                                                  <br />                        Functions: AUX Function， Songs Track， Stereo                                                  <br />                        Compatible With: Tablet PC， PC， iPod， MP3， iPhone， MP4， PSP， MP5， Laptop， Mobile Phone                                                  <br />                        Connection: Wired， Wireless                                                  <br />                        Interface: 3.5mm Audio， Micro USB                                                  <br />                        Audio Source: Electronic Products with 3.5mm Plug， Bluetooth Enabled Devices                                                  <br />                        Color: Black， White                                                 <br />Technical Parameters<br />  Bluetooth Version: V3.0+EDR                                                  <br />                        Protocol : A2DP， AVRCP                                                  <br />                        Transmission Distance: W/O obstacles 10m                                                  <br />                        Driver Unit: 40mm                                                  <br />                        Speaker Impedance: 4 ohm                                                  <br />                        Freq: 280Hz-16KHz                                                  <br />                        S/N: 95dB                                                 <br />Other Parameters<br />  Power Source: USB， Battery                                                  <br />                        Charging Voltage: DC 5V                                                  <br />                        Lasting Time: 2hours                                                  <br />                        Battery Capacity: 520mAh                                                  <br />                        Operating Range: 10m                                                 <br />Dimension and Weight<br />  Product Weight: 0.210 kg                                                  <br />                        Package Weight: 0.314 kg                                                  <br />                        Product Size (L x W x H): 22.0 x 7.2 x 3.4 cm / 8.7 x 2.9 x 2.7 inches                                                  <br />                        Package Size (L x W x H): 24.0 x 9.0 x 4.8 cm                                                 <br />Package Contents<br />  Package Contents: 1 x Speaker， 1 x USB Cable， 1 x 3.5mm Audio Cable， 1 x Lithium Battery                                                 <br /><br /><br /><br />                                                <br />