Main Features:<br />Built-in TF smart decoder， you can listen to MP3 music stored in TF card<br />While work with AUX， it is easily to listen to sound from PC， iPod， iPhone， MP3， MP4<br />Support Bluetooth hands-free calls， achieve directly talking to each other with Bluetooth speaker<br />Using most mainstream Bluetooth core， compatible with all Bluetooth devices<br />Support earphone input<br />Slim size and light weight， easy to carry<br /><br />    Specifications<br />Primary Features<br />	 Model: S57U                                                  <br />                        Design: Fun， Mini， Portable                                                  <br />                        Supports: Bluetooth， Hands-free Calls， TF Card Music Playing， Microphone， Loudspeaker                                                  <br />                        Functions: Stereo， AUX Function， Songs Track                                                  <br />                        Compatible With: MP5， Tablet PC， Mobile Phone， TF/Micro SD Card， PC， iPod， MP3， iPhone， MP4， Laptop                                                  <br />                        Connection: Wired， Wireless                                                  <br />                        Interface: Mini USB， TF Card Slot， 3.5mm Audio                                                  <br />                        Audio Source: Bluetooth Enabled Devices， TF/Micro SD Card， Electronic Products with 3.5mm Plug， Electronic Products with USB port                                                  <br />                        Color: Blue， Green， Black， Purple                                                	<br />Technical Parameters<br />	 Transmission Distance: W/O obstacles 10m                                                  <br />                        Power Output: 3W                                                  <br />                        Freq: 280Hz-16KHz                                                  <br />                        S/N: 95dB                                                	<br />Other Parameters<br />	 Support O.S: Windows Vista， Mac OS， Windows 2000， Windows XP， Windows 7                                                  <br />                        Power Source: USB， Battery                                                  <br />                        Charging Voltage: DC 5V                                                  <br />                        Charging Time: 2 hours                                                  <br />                        Lasting Time: 5 hours                                                  <br />                        Battery Capacity: 520mAh                                                	<br />Dimension and Weight<br />	 Product Weight: 0.185 kg                                                  <br />                        Package Weight: 0.215 kg                                                  <br />                        Product Size (L x W x H): 6.0 x 6.0 x 5.0 cm / 2.4 x 2.4 x 2.0 inches                                                  <br />                        Package Size (L x W x H): 7.5 x 7.5 x 6.0 cm                                                	<br />Package Contents<br />	 Package Contents: 1 x Speaker， 1 x 3.5mm Audio Cable， 1 x User Manual                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br /><br /><br />                                                <br />