This mini speaker supports Micro SD/TF card, USB disk, FM, it is stylish, compact, portable and convenient to carry. With it you can enjoy music anytime anywhere. Specification: SNR: >80db Color: Pink ,Bule,Red,Green,Black,Silver Music format: mp3 Material: aluminum alloy Power source: Li-ion battery / DC5V Built-in rechargeable battery Support : Micro sd/tf card/usb/disk/fm Usb 2.0 high speed transmission,fully compatible with usb1.1 line in function,receiving the audio source from mp3/mp4/pctebook/ipod/iphone Function buttons: on/off, menu, previous song, next song, play /pause, volume control Package Included : 1 x Mini Portable USB Speaker 1 x 3.5mm Plugs Cable With USB Charge