... :3.5inch TFT LCD touch key screen 2.Step-up buzzer alarm 3.Compatible with PAL/NTSC Car video parking sensor with camera ... and 3.5inch TFT LCD monitor 1,Display:3.5inch TFT LCD touch key screen 2 ... or two way video6,Can be connected with camera and parking sensors 7,2,4 sensors for option8,Step-up buzzer ...