Dog Bell for Door Potty Training, Daytech Dog Door Bell Wireless Doggie Doorbells for Dog Puppy Training Sliding Door/Go Outside with IP55 Waterproof Touch Button 55 Melodies 5 Volume Levels LED Light

Product description <img alt="Dog Door Bell" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/ea3f6e63-5d0c-4ad5-af92-e0cc9cc4b9c3.__CR0,0,600,450_PT0_SX600_V1___.jpg"/> TIPS: If you add more units to work with previous units, you need to pair them before using.

Pecfect Solution to Train Your Lovely Pet <img alt="dog doorbell" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/638e2817-ff16-4220-801c-6d97b3e8aa30.__CR0,0,300,225_PT0_SX300_V1___.jpg"/> Go out <img alt="dog doorbell" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/370eb602-ea52-4d97-9245-061327746037.__CR0,0,300,225_PT0_SX300_V1___.jpg"/> Potty time <img alt="dog doorbell" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/d90af913-ce5a-481a-9e56-a59da4a87a32.__CR0,0,300,225_PT0_SX300_V1___.jpg"/> Eating & drinking <img alt="dog doorbell" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/04c18e13-7c20-4894-9694-2b63f947f037.__CR0,0,300,225_PT0_SX300_V1___.jpg"/> Go home <img alt="Dog Door Bell" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/51919aeb-5ebc-4154-bf4b-e485415bd6a8.__CR0,0,600,450_PT0_SX600_V1___.jpg">