Small fairly complete system to switch his music as you want and where you want: the integrated FM radio tuner works perfectly with many storage, USB outlet to a key (but not connect an MP3), audio input to connect the MP3 or any device with an audio output (with a jack-jack cable supplied). Beware of noise to the audio input which provides less output volume (thus set for the connected device). The device runs on battery that is not the quality ... but hey, for the price, it is already very good. Level sound quality is very acceptable for a small room (like a room) without intolerable distortion when the volume goes up. In short, a combination with an MP3 ... and you have an effective and mobile audio system: the top for my 9 year old daughter to listen quietly in his room
