Includes 4 Stereo Headphones and a 10-position Stereo Jackbox with individual volume controls. Audio inputs include ¼" headphone jack for listening center, external speaker jack with one 3.5mm plug headphone jack and remote start/stop microphone input. Digital AM-FM radio. Top loading CD player with 20-track programmable memory, skip-search, 2 x 3 digit counter, CD-R/RW compatibility. Dual cassette recorder-players. High-impact ABS casing, permanently attached AC cord, C-UL listed for classroom safety.