Califone's Cassette Player/Recorder makes it easy to create engaging classroom listening activities and audio learning experiences. The durable ABS plastic exterior holds up to years of heavy use, while the powerful 500 milliwatt amplifier lets you project sound to up to 20 students. A built-in mic with an extra remote mic jack make recording simple. Two 1/4-inch headphone jacks allow for multiple headphone or jackbox connections. Includes an AC/DC power adapter.