I absolutely love this ring. I'm a clicker trainer who basically never uses a clicker because voice is easier and I only have 2 hands and not much coordination. This thing actually makes me train more! By using it on my thumb or index finger I can hold and dispense treats in the same hand as the clicker without dropping either. It's a good volume, easy to press, and comfortable. I hesitated buying it because of the price, but now that I've used it I think it's worth it - especially if you're like me and regular clickers (even with a wrist strap) make you wish for that third hand.