The AV344 is a multifunctional amplifier with integrated MP3 player. It runs on the built-in battery or with mains. This mini amplifier will take your house party to a next level and it will turn your party into a karaoke festival. Featuring a MP3 player with display, USB port, Bass/Treble control, Echo control and a microphone input. Also perfect for applications as HiFi and background music.