This audio amplifier is small in size and easy to operate, you can use it at home, and carrying it to your car is also very convenient. Features: The stereo amplifier will enable you to satisfy your high demands on sound. The amplifier is characterized by low operating current, rapid switching capabilities and perfect temperature stability. Experience and enjoy how this high-tech machine perfectly reproduces magnificent sound. Metal casing, light and rugged. Small size, no need much space. Specifications: Main color: black Rated frequency: 20-20kHz SNR: 80db Impedance: 4-16ohms Power: 20W+20W The distortion rate: 0.4% Remote battery: 1 * CR2025, 3V, 150mAh Item size: 193 * 180 * 65mm / 7.6 * 7.1 * 2.6in Item weight: 200g / 7.1ounce Package size: 200 * 200 * 100mm / 7.9 * 7.9 * 3.9in Package weight: 1809g / 4.0lb Packing List: 1 * BT Amplifier 1 * Power Cable 1 * Remote Control