The Pioneer CT-S430S is a compact and affordable amplified CD receiver that provides 4x55 watts of power (RMS). It features a built-in CD player, USB input for MP3/WMA playback, and Bluetooth connectivity for streaming audio from compatible devices. The unit also has a detachable preamp output for connection to an external amplifier, rear-panel auxiliary and subwoofer outputs, and compatible with steering wheel controls. The CT-S430S comes with a remote control and can be mounted in a dashboard or under a seat for convenient operation.