I've had ours for almost a year, out in all weather conditions and it works great, i like it so well that i bought one,for a family member, as a christmas gift (their dog would run across the street to chase squirrels)

My dog sees it coming and she gets worried

Had to use the vibration on my dog that liked to run across the road when i called him

Chasing a buck, eating poop (or anything that's horrifically disgusting), or just barking his head off