The Sony CDP-CA7ES CD changer comes with a 2Hz-20kHz frequency response which delivers a brilliant sound output. The 102dB Signal-to-Noise Ratio of this Sony 5-DISC CD Changer gives you a clear sound performance. This Sony CD player comes with Hybrid Pulse digital-to-analog converter (DAC) which plays your entire collection of music files with different formats. The Sony 5-DISC CD Changer has a headphone jack that allows you to connect almost any standard headphone. This Sony CD player boasts a full function remote control which lets you operate it with utmost convenience and gives you the much desired mobility. Weighing just about 11.24 lbs, the Sony CDP-CA7ES is lightweight and easy-to-shift device.