With different audio inputs: wireless bluetooth, SD card, U drive, stereo RCA, FM radio and 2 sets of microphones, compatible with most audio devices such as iPhones, smartphones, tablets, computers, etc. or sound storage devices. Supports AC 110V/220V input and DC 12V input, convenient to use at home, in the car or on the go. Main volume, echo and microphone volume control, treble and bass adjustment is designed to suit different listening styles and audio devices. They are all regulated by analog components to improve sound quality, allowing you to enjoy the world of music and deliver truly high-quality sound effects. Support U drive input, convenient download your favorite HiFi music, plug and play when connected to your device, no need for audio cables and other connections. Two microphone inputs support singing multiple people at the same time, providing more fun at parties. Lightweight, easy to carry, built-in LCD display with LED backlight and equipped with remote control, convenient and clear real-time operating status display, easy to operate. Aluminum alloy housing, stylish appearance, adding a beautiful landscape to your car, very suitable for home/car/party audio systems. - Inner mesh panties Audio input: Bluetooth / Stereo RCA / U-DISK / SD card / FM radio / Microphone 1 and 2 Audio Output: speaker jack with raw cable Input voltage: AC 110/220V/DC12V Bluetooth: support Output Power: 40 W 40 W Peak power: 300 W 300 W Number of channels: 2.0 Load Impedance: 4-16 SNR: 80dB FM frequency: 87,5-108 MHz Distortion Ratio: 0,4% Frequency: 20-20kHz Size (L. * W. * H. ): 180*138*55mm / 7.09*5.43 * 2,17 inch List of things to pack: 1 x Amplifier 1 x Remote Control 1 x User Manual