Features six stereo headphone jack outputs with individual volume control. Dual stereo input cords have both 1/4" and 3.5mm plugs. 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; Batteries (Sold Separately); Number of Stations: 6; Number of Headphone Jacks: 6; Radio Features: AM/FM.