Bluetooth(R) audio-streaming solution for smartphones as well as other Bluetooth(R)-enabled media players; Bluetooth(R)-enabled FM transmitter (A2DP audio); Compatible with any factory or aftermarket FM radio; Hideaway module that keeps the stock look; Interrupts incoming antenna signal when in use for supreme audio performance; Automatically reconnects with paired device; Auto turn on/off, no switch needed; Works with FM antenna connection or factory aux input; Infinite channel selection through free mobile app; RCA audio out for compatible radios with aux audio input ; Requires basic installation;