Dog Bell for Potty Training Wireless Doggie Door Bell for Training (NWOT)

-comes with 1 receiver + 2 buttons -comes with instruction manual and 4- 3M double coated tape -never used! Brand new. -last picture shows my actual items.  Features & details—- WIRELESS DOG DOORBELL - Dogs can activate the wireless dog doorbell through their nose or claw touch activator. You can use the dog doorbell to train the puppy to use the dog doorbell when going out, going home, the potty, or the bathroom.  TRIGGER SIMPLE - The touch type button is not needed to press, just touch it gently. For puppy dogs of all sizes, as long as your dogs know how to touch the button, these wireless dog doorbells for potty training are suitable for it.  EASY TO USE - The dog bell button and receiver installation is very flexible and simple, the dog button surface is very smooth, easy to clean, can be attached to the ground, glass, door, wall, etc., and the receiver can be inserted in any socket, plug, and play.  CUSTOMIZABLE - The receiver has 55 different ringtones and 5 levels of volume, you can set different ringtones for 2 buttons. 0-110db volume so that you can hear it even though you are in the kitchen, the second-floor rooms. Also has a memory function that will remember your last doorbell ring after a power outage.  LONG RANGE - Our dog bell has a long working range of up to 500 feet(150 meters)in an open area. Whether you are on another floor, in the garden, or in the kitchen, when the dog touches it from the outside, the receiver will remind you that your pet is home.