... and Micro SD slot, it can be connected with MP3, MP4 ,very good used and cheap price ... , insure the sound quality.Circular design, exquisite appearance, with 6 buttons.Buttons definition: "ON/OFF", "Repeat", ... devices like MP3, MP4, Music Phones, iPod, Portable CD Players, Notebook PC etc.Bottom with red ... Manual Hot selling portable mini speaker with fm radio and MP3 Player support Micro SD TF Card ...