Features:Small size.Working style: D class.Quiescent current: 65mA.Work efficiency: 90%.Rated output power: 2*210W.Frequency response: 20Hz to 20KHz.Voltage: double AC6V (10W) PGA2311 use and dual AC24V (400W) TDA8954 use.Specification:Material: electronic elementColor: red & blackPackage included:1 x Stereo Digital Audio amplifier BoardNotes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.