Works very effectively on one dog with no pain or discomfort. Second dog is a bit wiser, would be good to have settings for the bigger stronger dog. Recommend though, it has made a huge difference.

I did not receive the left light that is listed in the description. The collars seem to be working and look as described.

Great product, got 2 the light shock is great and only took a week and now we only use the vibrate to keep the dogs quiet. Battery life is good we didn’t have to charge for almost 2 weeks!

So far so good. Used on 7yo beagle mixes who bark at everything. Instantly stopped barking. It's been a fews days and they've improved even while not wearing the collars.

This collar is made of wear-resistant and durable material, and has high-brightness reflective strips at night, which increases the safety of dogs going out, and the simple design of the reflective tape is very beautiful. The collar uses high-quality retractable lights, which are firm and can be adjusted according to the size of the dog, which will give the dog a very comfortable feeling.