With built-in Bluetooth technology, this CDB490BT allows you wirelessly stream music from your external Bluetooth devices. A top-loading CD player enables you to play back CD /MP3 disc media. 5mm allows you to enjoy music from other devices thru 3.5mm Cable Stereo headphone jack for better personal music enjoyment- Connect your headphones with this device for a more personal listening experience whenever you want it. You can enjoy your music by connecting your headphones to this device.