2 channel power output: 3W*2RMS distortion: <0.2% (1W 1KHZ) speaker: 2 inch *2 frequency response: 100HZ-18KHZ isolation: a signal-to-noise ratio of 65DB: 85DB input sensitivity: 300-2000MV (RMS) computer USB power supply (5V) external power supply (optional): DC5V-1.2A
