Review on 🐶 Exuby Dual Shock Collar for Small Dogs - Train and Control Two Dogs Simultaneously with 1 Remote, 2 Receivers, and 4 Straps - Multi Modes - Rechargeable Batteries - Ideal for Discipline and Training by Matheus Buck

I bought this for my 2 mini (yapping) doxies and the vibrate mode helps to stop them. Smaller collars fit well; It's not making close contact with the neck on my little pup, but I'm still not trying to use the shock. It really works! Beat my husband by 10 and it was great! I can't imagine 100. Giving 3 stars because the charging mechanism only works with 1 collar/1 remote which takes hours and then I have to switch to charge other dogs. Direct design error! You must give the customer 2 chargers for both collars. Otherwise I would give 5 stars if so.