Product Specification: Model No.:MI-5000 Pat Name:DUKE Material: Front Cabinet:Aluminium Back Cabinet: NylonW6+Glass Fiber Mortise: Zn Lever: Aluminium Product Size: Front Cabinet:70(W) x 196(H) x 25(D) Back Cabinet: 70(W) x 196(H) x 32(D) Mortise: 104(W) x 73(H) x 20(D) Power: DC6V(Alkaline Battery 1.5V x 4) AA Size Battery Lifespan:Up to 8 ~ 12 months in case of 30times using per day. Standard export carton packing