Pioneer DEH-S31BT Single Din Bluetooth Car Stereo CD Receiver
The Pioneer DEH-S31BT features compatibility with Pioneer's exclusive Smart Sync app. Experience additional features by downloading the Pioneer Smart Sync app to your smartphone and syncing with your receiver. Smart Sync allows you to engage with your receiver in a similar fashion as high-end touchscreen units with a customizable UI and navigation app link. Pioneer Audio receivers feature built-in Bluetooth enabling both hands-free calling and audio streaming. You can also listen to music from your Android device or USB flash drive via the front USB port. Built-in MOSFET amplifier delivers up to 50 watts to each speaker (up to 4 speakers). A built-in CD player allows you to enjoy music from your CD collection.
Stay safe and obey local hands-free laws with built-in Bluetooth (HFP). Easily pair a Bluetooth enabled phone to the DEH-S31BT without having to go through complicated settings. When a registered Bluetooth device is near the receiver, the auto connection function automatically pairs the two units.  From wireless audio streaming (A2DP profile), hands-free calling, and simple pairing, to audio control and artist, album, and song search (AVRCP profile*), Bluetooth wireless technology has made life in the vehicle much more convenient. The DEH-S31BT features Bluetooth Hands Free Profile 1.6 including Wideband Speech capability, which improves the sound quality of phone calls by offering double the frequency bandwidth (when compared to calls without Wideband Speech).
Pioneer Smart Sync:  Integrate Your Smartphone with Your Receiver. Pioneer Smart Sync is a highly evolved app available for both iOS and Android OS that utilizes the power of a connected smartphone to expand the features and user interface of compatible Pioneer in-dash receivers. With support for either a Bluetooth or USB connection, the link between your smartphone and the in-dash receiver can be either wired or wireless.  Compatible Apps are Just a Tap Away.  Say goodbye to complicated user interfaces. With your compatible apps just a tap away, your drive will be much smoother. In addition, Pioneer Smart Sync v4.5 enables you to keep up with your vehicle information including engine performance, live data, and more. Pioneer Smart Sync provides you with intuitive app-based features like Built-in virtual assistant, maps, voice messaging, music & Monitor Vehicle Performance (* Optional OBD-II device required).