The audio amplifier is a powerful wireless stereo amplifier that is suitable for use in both car and home audio devices. With its wireless connection there is no need for complicated wiring connections, simply connect your music to speakers and radio system and start playing. Features -Color:Black -Material:Aluminum alloy, Plastic -Size:15.50X8.50X4.50cm/6.09X3.34X1.77in -Rated voltage: 12V -Rated power: 40WX2 -Rated frequency: 20-20KHZ -Resolution: 47K -Distortion rate: 0.1 -SNR: 90db -Impedance: 4-16 - Versatile applications: This wireless stereo amplifier is suitable for use in cars, homes, shops, parties, and more, making it an essential device for any music lover. - Wireless connection: With no complicated wiring required, this amplifier for convenient music playback and various connection. - Excellent sound: Equipped with a high-power audio amplifier chip, this device provides powerful and excellent audio performance. - Compact and lightweight: This sound amplifier is small and lightweight, making it easy to carry and install, and doesn't take up much space. - Multiple input options: This audio amplifier supports multiple input options, such as USB and card, making it easy to connect to various devices. Package list: 1 amplifier 1 control