1.Numeral and color LED display 2.Left and right obstacle indication. description: 1,Numeral and color LED display2,Ultra slim dash mounted ... LED display 3, Step-up buzzer alarm 4,Left and right obstacle indication ... .8m to 0.3m 6,Display unit with built-in buzzer 7,2,3,4 sensors for option8,Display size: 130*16*14mm ...