... SD Card Mini Speaker 2.Apply PC,MP3/4 and other audio source 3.Supports FM radio/MP3 ... .Pink/Blue/Black... Portable USB SD Card Mini Speaker FM Radio: Description:1,Classic private mode,whale appearance ... out is just know that Built-in FM radio function8,Can be replace lithium electricity,power life ... phone ,MP3, MP4 and other audio sourceSupports FM radio function Rated Power: 3W Speaker unit: 52mm, 4 ...