Product model: A44S Operating voltage: 12 volts, Installation position: rear Screen type: LED display, Voice type: Real voice, Sound switch: Yes, Switch function: Voice /BIBI/ mute, 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: 355G/ set, Single package size: 178*130*45MM Packing quantity: 50 sets/box, Carton size: 67*25*37.5CM(A50#)