... other audio sources 3.Support FM radio/MP3 fromat 4.Pink/Blue/Black. Colorful Mini speaker with FM Radio: Description of Mini Speaker: ... Do not go out is just know that Built-in FM radio function8,Can be replace lithium electricity,power life uninterrupted, ... mobile phone ,MP3, MP4 and other audio sourceMini Speaker Supports FM radio function Rated Power: 3W Speaker unit: 52mm, 4ΩFrequence response ...