Review on 🐶 DOG CARE Dog Training Collar: Rechargeable Shock Collar with Remote | 1000Ft Remote Range | 2 Receivers | Ideal for Large, Medium & Small Dogs by Kevin King

I ordered one of these blocks a few years ago. The rubber pad on the charging port fell off after a few months. -- but at least the collar has worked well up to this point. So I ordered another device for $75 with two receivers and one transmitter. They updated the old version I had to a newer one so it worked a little differently. The device is constantly disconnected from the receiver and you have to constantly check whether it works at all. The butt portion of the collar didn't seem to draw the dog's attention even at setting 99. I held on to the pins that were supposed to be beating but only got an amount equivalent to a 9 volt battery. I will never order dog accessories again. Buyer Warning.