Easy installation: cat bell use double-sided adhesive tape to attach it to the door or wall. The plug-in receiver can be placed at home without wasting batteries. Dog bell increase or decrease the receiver and transmitter according to your needs. The matching method is simple and easy to use<br>Waterproof: Buzzer dog with IP55 waterproof and dustproof, enough for daily use, feel free to install it outside, where near your door. Plz note that do not soak it in water Long time, As IP55 waterproof level only could prevent water from entering the device temporarily<br>Multi-purpose: cat bell can also be used for the doorbell of home, apartment, office and villa. And it can be a paging device for the elderly that signals to care when they need it most<br>Easy to release Christmas gift: dog bell touch training. The dog bells only need to be lightly touched or pushed over the touchpad to activate the wireless doorbell by nose or claw. No need to squeeze. Dog button. All small or large dogs can use it, even cats can<br>Wireless range: buzzer for dogs with a working range of up to 150 metres, the receiver has 55 different ringtones, we can set 2 different ringtones for 2 triggers according to the instructions, in the kitchen, bedroom we can clearly hear the dog's call, let us get along very well