Califone 2455AV-03 Dual Cassette Variable Speed CD Player 14W Designed For Classroom Students School Use 14 Watts RMS loud enough for groups up to 100 people and can also be used as a mini public address Built-in mic records lessons/student responses. Variable speed playback on cassette/CD players. Plays CD, CD-R, CD-RW, MP3-CDs. AM/FM stereo.