Finally moved on from cassettes?  The Hamilton HB-100i is ready for your classroom. 

From Hamilton Electronics:

The HB-100i Portable Boom Box offers the latest digital media capability including iPod docking, CD player, USB port, SD card slot and AM/FM radio. This boom box features everything you need for classroom use; it is designed and built to withstand the rigors of classroom use while providing high quality sound.

Major Features:

• Top-Loading CD Player
• AM/FM Radio with Digital Tuning
• iPod Dock
• USB Port + SD Card Slot
• LCD display with blue backlight
• 2x full range loudspeakers
• battery compartment
• Stereo/mono switch
• Bass Boost
• 1/8" MP3 Line In
• 1/8" Headphone Output
• Remote control
• One Year Warranty