Brand XiaoKe Model S186 Colors Black + purple + silver white Quantity 2 Type Portable Material ABS housing Total Power 2 x 3W Impedance 4 ohm Signal to Noise Ratio(SNR) >85dB Sensitivity 550 +/- 50mV Channels 2.0 Power Supply USB DC 5V Plug Type USB 2.0 Interface No Other Features USB cable: 123cm; The cable between the speakers length: 65cm; 3.5mm audio cable length: 124cm; Novel and lovely appearance and streamline design in the back side; 2.0 channel stereo devise; Sound accurately freely enjoy your game excitement; USB power energy-saving; Convenient use with PC laptop MP3 etc. Packing List 2 x Speakers