Model: U-2400System: 2.1Rated power: 2x3WSub-Woofer: 5WImpedance: 4?Frequency response: 20Hz-20KHzInterface: USB 2.0 & 3.5mmPower supply: USB port of computer, 5V DCAudio input: 3.5mm jack plugMaximum power: 3.5WImpedance: 4 ohmsS/N ration: 58dBFrequency response: 20Hz-20kHzDistortion: 80Hz-20kHz?1%Material: ABSFunctions: USB/3.5mm audioInput: volume adjustment"}]