The durable Hamilton HACX-205 Top-Loading Portable Classroom CD Player with USB & MP3 provides a great way to deliver clear audio sound to small groups. It's perfect for the classroom and ideal for giving music lessons. The top-loading CD player supports audio CDs, as well as CD-R and CD-RW discs. Plus, there's a built-in USB port that allows you to play MP3 files loaded onto USB Flash drives. The stylish design features a backlit LCD track display, a 3W amplifier and an integrated speaker. There is one 1/8" stereo audio output and one 1/4" stereo audio output. Both can be used for connecting headphones and/or jackboxes. For added durability and convenience, the HACX-205 has CD anti-skip technology and digital push-button volume controls. Plus, it can be powered by the included 6V wall power adapter or by four C batteries, which aren't included.