Easy to Setup Simply plug the receiver into a power outlet. The bell-push can be fixed to the doorframe with screws, or attached using double-sided adhesive tape. All the required accessories are included in the package for an effortless installation. Product information White Manufacturer TECKNET Part Number 615426 Product Dimensions 8.51 x 5.99 x 7.49 cm; 202 Grams Batteries 1 Lithium ion batteries required. (included) Item model number 615426 Colour White Item Package Quantity 1 Batteries included? Yes Batteries Required? No Item Weight 202 g