Main Features:<br />Can be used for laptops， MP3 players with low power consumption<br />You can manually adjust the bass and treble effect， through the knob to select the best music of your favorite effect<br />Powered by USB cable to the computer power supply， or 3 AA batteries (not included)<br />Standard 3.5mm jack， it can be used as a computer speaker<br /><br />    Specifications<br />Primary Features<br />  Design: Stylish， Mini， Classical， Portable， Cool， Fun                                                  <br />                        Supports: Loudspeaker                                                  <br />                        Functions: Stereo                                                  <br />                        Compatible With: PC， Laptop， MP3， MP4， MP5， Mobile Phone                                                  <br />                        Connection: Wired                                                  <br />                        Interface: 3.5mm Audio， USB2.0                                                  <br />                        Audio Source: Electronic Products with USB port， Electronic Products with 3.5mm Plug                                                  <br />                        Material: Metal， Electronic Components                                                  <br />                        Color: Black                                                 <br />Technical Parameters<br />  Power Output: 5W                                                  <br />                        Sensitivity: 115dB ± 15dB                                                 <br />Other Parameters<br />  Power Source: Battery， USB                                                 <br />Dimension and Weight<br />  Product Weight: 0.448 kg                                                  <br />                        Package Weight: 0.66 kg                                                  <br />                        Product Size (L x W x H): 9.5 x 8.5  x 12.5 cm / 3.73 x 3.34 x 4.91 inches                                                  <br />                        Package Size (L x W x H): 14 x 13 x 17 cm / 5.50 x 5.11 x 6.68 inches                                                 <br />Package Contents<br />  Package Contents: 1 x Speaker， 1 x USB Cable， 1 x Audio Cable                                                 <br /><br /><br /><br />                                            <br /><br />                                                <br />