High Tech Pet Genuine Power Pet Brand Automatic Pet Door Collar from Water Resistant - Rugged - Light Weight - Long Life Battery Included - Directional Ultrasonic Signal - USA Customer Service

I was surprised at its size. Our lil guy doesn't seem to even notice it. The ONLY thing I do not like, is that the manufacturer, chose to create a "casing" for the battery, thereby highly increasing the price of the battery. Fortunately, I was able to find others on the internet who also hated this and were able to use a standard battery (I can't remember the number now) and they used an Exacto knife to remove the special "casing" that the factory uses. Being careful not to destroy it. They, they found another battery that is the same size and specs. They put the casing back on, and while no one seems to be able to spot weld it again, taping it seems to work just fine. I was able to order some extra batteries from E-bay that were at a more resonable price. But when it comes time to replace, I'll try to removing the case thing. ;)

Arrived quickly and worked as intended, all good!

My golden retriever had her Collar on and splashed in the river. It was not submerged and it stopped working. Had it only for 25 days and the company replaced it. My other dog has had hers for three months and no issues. It works great with their electronic dog door and the dogs love it as they could go in and out to the backyard as they please

a big improvement on the older version. if you have snow, and a dog that loves to play in it, spend a few extra dollars for this unit, it will last longer and wont get broken apart for doggy snow bank or back yard grass neck rubs, The biggest issue with all there collars is that metal disk sitting out front. Static from dog rubbing self on rugs has burned 2 units out, so I need to keep a spare on hand.

Didn't appreciate not being informed that I wasn't going to receive two of them, only received one. I have two dogs !