Stereo six-station jack box with volume control for each station includes six personal sized headphones with volume control and screw-on 1/4" adapter with gold plating. The portable stereo MP3/CD/cassette player features an AM/FM radio, USB dock and SD card reader. Expanded connections include a USB port for playing MP3/WMA files from USB drives and a 3.5mm jack for connecting to any device with line out audio, MP3 players or Apple® devices like iPod® and iPad®. Power Source(s): AC/DC; 8 D Batteries (Sold Separately); Number of Stations: 6; Number of Headphone Jacks: 6; Radio Features: AM/FM.