Sherwood CDC-5506 5-Disc CD Player Disc Charger: 5 Disc CD Changer Audio: Number of Channels: 2 Frequency Response: 20~20,000 Hz +/-0.8 dB Signal to Noise Ratio, A Wtd.: 94 dB Dynamic Range: 86 dB Total Harmonic Distortion, 1 kHz: 0.009 % Wow and Flutter: Quartz crystal precision Audio Output Level: 2 V RMS Digital Output, Optical, Wavelength 660 nm: -20 ~ -15 dBm Connectors: USB Connector x 1 Headphone Jack x 1 Analog Audio Out x 1 Digi Link x 1 Digital Optical x 1 Upgrade Terminal x 1 Dimensions: 17.36 x 4.41 x 15.43 (W x H x D) Weight: 12.4 lbs.