EverNary Dog Door Bell Wireless Doggie Doorbells for Potty Training with Warterproof Touch Button Dog Bells Included Receiver and Transmitters (1 Receiver + 3 Transmitters, Black)

Ding Dong! How smart your dog is! All of your friends and family will be AMAZED at your dog! Forget the scratching, barking, and whining! It's the premier solution to all of your dog potty training problems.

Dog Doorbell Ringtones: 52 chimes ---Volume range: 0 to 110dB IP55 Waterproof Mother Nature can be fierce.

In order to withstand whatever the elements may throw at it, the transmitter has a high waterproof rating of IP55.