The CD-S300 provides the same pure direct feature that is a popular feature of Yamaha amplifiers and receivers. Pressing the button on the front panel or on the remote control shuts down the digital audio output and turns off the display. This achieves the lowest possible noise interference and thus highest sound quality of the analog audio output. This CD player delivers sound that will satisfy devoted music fans. In addition to CDs, it also provides high quality play of music files stored on digital audio players like iPod or USB memory devices via a USB port on the front panel.