Aocome Portable Mini AM FM Radio Clear Speaker Music Player, Micro SD/TF Card Slot, USB Charging Cord, Rechargeable Li-ion battery, Earphone Jack (BM8 Red) Mini USB Portable AM Radio Speaker Music Player with Rechargeable Li-ion battery. Enhance Bass effect. AM/FM Switch, Press M to Switch between AM/FM and other modes. LED screen display. FM radio frequency Range 87.5-108MHZ; AM radio frequency Range 522-1710KHZ 3.5mm standard earphone jack, support audio output for MP3,MP4 and Mobile Phone. (A Nice Clear Sound Speaker for playing MP3 music) Buy with Confidence. 18 months warranty and 30-day money back guarantee