Includes: (1) AudioStar CD/USB/Cassette/Radio Boombox with Built-in Tape and CD-to-MP3 converter, (6) SC-7V Deluxe Headphones, (1) Eight Position Jackbox with Volume Control and (1) Large, Lockable Carrying Case (Lock Not Included) Receives AM/FM radio broadcasts, Programmable CD Player w/repeat play - plays CD audio and MP3 files on CD Cassette Player/Recorder, records from CD or Radio; Converts cassette tapes and CDs in real time to MP3 format compatible with PC and MAC 40mm Speaker drivers, 50-20000Hz Frequency response, 32? Impedance, 105dB 4dB Sensitivity Individual volume control knobs for each headphone position, 4' long cable, Accommodates Eight 3. 5mm headphone jacks