The KDC-BT640U USB / CD Receiver is a versatile and high-quality audio system. Enjoy crystal clear sound with multi-color illumination and a 13 band EQ and DTA for optimal music customization. With built-in Bluetooth and front USB & AUX IN, stay connected and jam out to your favorite tunes. 255 Segment 1.5 Line Text Display and 3 Preouts 3.5V provide convenient and easy-to-use controls. Upgrade your listening experience with the KDC-BT640U.