Product model: A45K Operating voltage: 12 volts, Installation position: rear Screen type: LCD display, Sound type: BIBI sound, Sound switch: Yes, Switch function: on/off sound, Screen wire length: 5 meters, Sensor wire length: 2.3 meters, Products include: Display *1, sensor *4, controller *1, double-sided tape *2, power cord *1, drill *1, packaging *1, Single weight: 390G/ set, Single package size: 178*130*45MM Packing quantity: 50 sets/box, Carton size: 67*25*37.5CM(A50#)