Review on Improve Pet Training with HoAoOo Clicker - Black + Blue Dog Training Clicker with Wrist Strap by Lisa Simmons

Works great! I bought them to train our puppies. We live in the country and wanted to find a way to get their attention and make them come without me yelling every time. I started training them by clicking repeatedly and then giving them a treat. I then waited for them to leave and clicked (and called if necessary) and then treated and praised them when they arrived. Now I can just click and they'll come running if they're within earshot (which they can usually hear from anywhere on our property. I've since added a whistle to the tutorial to call them remotely).