Built-In Bluetooth for Hands-Free Calling and Wireless Audio StreamingPandora Ready for iPhone and AndroidSiri Eyes Free Support (iPhone 5 and iPhone 4S)2 RCA Preouts (2V)Multi-Line, Multi-Segmented LCD Display with LED Backlight (13+4 characters)Built-In MOSFET 50W x 4 Amplifier2 Sets of RCA Preouts (2V) for System Expansion5-Band Graphic EqualizerFront USB Port and AUX InputAdvanced Sound RetrieverWired Remote InputIncluded Remote ControlAnti-Dust DesignDetachable Face Security