this amplifier is a multi-functional surround sound amplifier that's suitable for hi-fi, home cinema, or for small pa and karaoke events! stereo inputs and jeck input can connect with all types of audio equipment - such as mp3 players, dvd players, and computers, and can output the sound to a total of 5 speakers. as a useful addition to its hi-fi and home cinema function, it also features two front-panel microphone inputs which allow you to entertain at pa events, karaoke parties, or meetings. the device also offers an integrated radio receiver to tune into all your favorite radio stations.