The Kenwood KDC-220UI is a single DIN head unit with 4-channel output. It features a variable color illumination, allowing you to customize the display color. The head unit has a CD player and supports various formats including CD and MP3. It also has a USB interface and an auxiliary input for connecting external devices. The maximum output power is 50W x 4. The model number for this Kenwood head unit is KDC-220UI.