Output power: 80W Frequency response: 38Hz-20Khz Distortion: 0.3 % at 1 W Signal-to-noise ratio: > 70 dB Separation: >45dB Voltage: AC 200 ~ 240 V/60 Hz Mute function Selected entry Selected to adjust Power switch on/off Drive units: 6.5"x1 3"x3 Impedance: 4Ω USB SD input Bluetooth Speaker Direct Current: 12V Weight: 6.0 kg Dimensions:37(Length)x22(Width)x47(Height)cm