Very effective you can see a very big difference between the three level so to avoid to unnecessary make your dog freak try it yourself before start with the low level first and level up if necessary as my dog are very little tge low level is enough it's in place since 3 hours and they already understand to not pass on it. The connectors are great its just 2 pressure buton so when you have to clean your mat just to remove the control and reinput on after. Their's aslo a ac adaptor input so is your battery run out off power you can plug it with a 9volt adaptor

Very effective you can see a very big difference between the three level so to avoid to unnecessary make your dog freak try it yourself before start with the low level first and level up if necessary as my dog are very little tge low level is enough it's in place since 3 hours and they already understand to not pass on it. The connectors are great its just 2 pressure buton so when you have to clean your mat just to remove the control and reinput on after. Their's aslo a ac adaptor input so is your battery run out off power you can plug it with a 9volt adaptor

Very effective you can see a very big difference between the three level so to avoid to unnecessary make your dog freak try it yourself before start with the low level first and level up if necessary as my dog are very little tge low level is enough it's in place since 3 hours and they already understand to not pass on it. The connectors are great its just 2 pressure buton so when you have to clean your mat just to remove the control and reinput on after. Their's aslo a ac adaptor input so is your battery run out off power you can plug it with a 9volt adaptor