jWIN Portable MP3/CD Boombox with AM/FM Radio, Cassette Player and USB/SD/MMC (Green) Play back CDs, CD-R/RWs, MP3s, and cassettes Play MP3 files from USB devices or SD/MMC cards Auxiliary input for connecting external audio devices One-touch recording from CD, radio or built-in microphone Power from wall outlet or with eight "C" batteries