Features: 1) Adopts original microchip components imported from the USA 2) Digital remote control to prevent illegal usage 3) Intelligent anti-theft design 4) Automatic door locking 5) Bright LED emergency signal light 6) Slim and watertight construction 7) Low power consumption battery with extended life 8) Alarm reminding when door is not properly closed Inner packing: Dimensions: 24 x 18.5 x 8.5cm N.W.: 1.3kg G.W.: 1.4kg Outer packing: 12pcs/ctn Dimensions: 51 x 39 x 29cm N.W.: 14kg G.W.: 15kg