... loudspeaker, can be connected with mobile phone, mp3, mp4,computer and common audio player to listen ... nice music, or just being hi-fi mp3 audio player, insert USB disk or TF ... of digital products at any timeMain function: MP3 player+FM radioColor available: Black,Silver,Red,Pink ... Technology Data: Music format: MP3 / WMA Broadcast mode: TF card and USB disk FM radio: 88MHz-108MHz MP3 mini speaker