Quick Overview The DEH-S4220BS Single DIN CD receiver offers features like smartphone integration, Bluetooth®, satellite radio options, and more. Equipped with Pioneer Smart Sync, this receiver, when paired with your smartphone, brings together navigation apps, messages, music, and more through a well-designed interface that enhances your vehicle's capabilities. Enjoy your CDs or FLAC files from a USB thumb drive, or listen to any audio source on your phone via Bluetooth® audio streaming. It has a 13-band customizable graphic equalizer, which increases to 31 bands when using Pioneer Smart Sync.