This audio amplifier is small and easy to operate, can be used at home and very convenient to carry to your car. Features: Mini power amplifier for 2.0CH speakers. LCD Display, Backlight Design Support FM radio function. support full functionality. Support U disk and memory card reading, plug and play, connect Easy operation with highs, bass and volume control buttons. Left and right channel output, rated power 20W + 20W Specifications: Color: Black Material: Aluminum Alloy Power: 20W * 2 Load Impedance: 4-16Ω SNR: 90db Frequency: 20Hz-20KHz Distortion Rate: 0.01 Percent Remote Battery: CR2025, 3V, 150mAh Item Size: 125 * 75 * 40mm / 4.9 * 3.0 * 1.0 6in Item Weight: 2 50g / 8.8 Package Size: 133 * 113 * 50mm / 5.2 * 4.4 * 2.0in Package Weight: 300g / 10.6 Note: The package without battery and plug (for power amplifier) need to prepare your own power supply. Package Contents: 1 x Power Amplifier 1 x Remote Controller 1 x User Manual