With the Sony CMT-X5, you can listen to clear and powerful sound at any volume level. Just connect your smartphone or tablet to the stereo via Bluetooth to enjoy your music wirelessly. You can use the top-loading CD player to listen to your classic albums. Are you worried your smartphone might run out of battery during streaming? You can also use the USB port to charge your smartphone and tablet. The stereo features double passive radiators which boost your bass sound. Sony's ClearAudio+ technology automatically adjusts the sound settings, allowing you to always enjoy great sound.