The CDE-100EUB offers superb sound quality and stunning features in an affordable package. The 50Watts x 4 amplifier delivers powerful clean sound. Plus, its built-in custom EQ lets you adjust the sound just the way you like it. Play all of your media in either MP3/WMA/AAC format from a USB memory device or CD-R. What's more, a handy AUX input on the front panel makes it easy to connect virtually any portable music device.