Two options let you easily access frequently used functions.1. Function Menu CustomizationFunctions registered in the Function Menu can easily be called up by simply pressing the "FNC" key.2. Favorite KeyPress and hold the “FNC” key to directly access the function registered for the Favorite Key.The clear resistive touch panel with high transparency and high luminance provides bright images with vivid colors.Changes illumination patterns according to the rhythm of the music. Illumination key colors can be preset the way you like.Just touch and move your finger over the screen for various operations corresponding to your finger movements. Intuitive control provides safer operation for in-car entertainment.You can connect two phones full time via Bluetooth, with secure and simple pairing. Calls to either phone can be received by a push of a key on the receiver.Just connect your iPhone via USB and the automatic Bluetooth pairing function will work to complete the pairing. No complicated manual procedure to worry about.