Pioneer DEH-S420BT CD Radio Bluetooth Spotify USB AUX iPhone Car StereoDEH S420BT 1 DIN CD Tuner with Bluetooth, USB, Spotify, Pioneer Smart Sync App and compatible with Apple and Android devices. Smartphone connectivity and Bluetooth, in one! This 1 DIN Bluetooth receiver sets new standards in terms of audio performance and connectivity. Nevertheless, its very easy to use and control. Bluetooth connectivity allows for safe and convenient hands free calling, as well as wireless music streaming from your smartphone.