This boombox offers superb functionality and heavy-duty design that is hard to match. It features a fully programmable CD player, cassette player/recorder, FM radio, and built-in Bluetooth technology so you can wirelessly stream music from any Bluetooth-ready deviceA "smartphones, tablets, computers, and more! You can even play back music from non-Bluetooth devices using the AUX IN jack (cable not included). Use the cassette recorder to record via Bluetooth, CD player, FM radio, or AUX IN jack. The unit is built to withstand the rigors of classroom use while providing high-quality sound. The headphones, each with individual volume control, feature four-in-one operation on 1A„8" stereo, 1A„8" mono, ¼" stereo, and ¼" mono modes. Each headphone includes washable, replaceable, soft leatherette ear cushions with swivel ear cups and a 6-foot chew-, kink-, and knot-resistant cord for fatigue-free use. Use in groups with the listening center jackbox, which has eight headphone jacks and individual volume control knobs to accommodate up to eight students.