【Scientific training methods】 The training clicker will have a clear sound after pressing the button easily. Big button for an easy click and a powerful sound. Rake training method is now increasingly popular, and many people call the “happy training method”, do not need to beat, do not need to force, you can learn a little time For your dog you want him to learn a variety of small stuff and fa 【simple and safe】 Unlike expensive electric discharge dog products, our products do not contain electricity, do not give Not the dog and the owner the electric shock. The shape of water droplets in the hands of the very comfortable, the sound stable, easy to identify the button ,. 【Benefits of the collocation】 4 different colors on the package (black and yellow and Red and blue) to be easy to transport and store. You can place it in a car, a bag or pocket to get it easily when you have to train your pets. 【Comfortable design】 ABS plastic material + stainless steel ring rust Not and is durable,