Supersonic SC504BLK Portable Audio System Dynamic High Performance Speakers, Top Loading CD Player, Plays MP3/CD, CD-R, CD-RW, Built-in USB Input Auxiliary Input Jack, External Audio Devices, Built-in AM/FM Radio, Analog Tuning Radio LCD Display, Rod Antenna, Rotary Volume/Tuning Control, Repeat One/All Functions, Bass Boost System, AC/DC Operation