Newcomdigi Touch Doorbell,Water-Proof and Dust-Proof Wireless Touch Doorbell, Potty Bell for Dogs or Cat, Pet Daily Training Touch Pad:The wireless dog doorbell can be sensed by touching. No more over-sized heavy button which looks tacky and is hard for dogs to activate. The touch pad sensor technology allows for your dog to easily activate the doorbell with a simple touch of a nose or paw. Waterproof and Dust-Proof:To protect against wet noses and dirty paws the Smart Bell is water-proof (IP44), dust-proof, and shock-proof. Easy to Use:No wires, tools, or screws required. Installation takes only a minute using the included self-adhesive tape. Touch Pad for outside of the door. Considerate:There are 36 selectable tunes, wireless range up to 1000 feet(open areas without obstacles), and 3 level volume adjustment. The mute mode can free you from disturbing. Well Designed: The battery bin of the emitter is designed to be drawer style. It is compatible with 2032 and 2025 big-capacity battery(about 6 month usage time).