Review on PETFAT Shock Collar with Remote for Dogs - Training Collar for Large, Medium, and Small Breeds, Waterproof, Bark Collar with Light by Lisa Carter

It works as it should. The best feature is the security key lock. Prevents accidental shock button presses. My previous stun collar didn't have this feature and too many times have I accidentally shocked my pet. Like this feature. All control buttons work. The intensity control on the top next to the antenna is a bit tricky to use. What the slider does is adjust the volume of the sound, horn, or beat. While that's true, I found it a bit strange. Just take it slow when it comes to adjusting intensity levels. Can't comment on durability yet as I've only had it for a few weeks. If I had another dog, I would buy him again.