Koolenry Dog Tennis Ball Launcher Dogs Chase Automatic Toys Interactive Fun Machine Catapult Throw Blue

It brings you and your pets a . How to use: the power switch to turn on three seconds later, the power indicator light up.After three seconds of power switch, the main machine is off. After starting up, a few power switches respectively to select the throw distance of 3 meters /6 meters /9 meters. The ball crossing at the bottom of the host tennis ball has infrared sensor.Scanning every 10 seconds, the host can deliver the ball every 10 seconds. This product giving dogs around the world the opportunity to play fetch to their hearts' content. With it, your dog never be bored again. Note: Its design is let the ball launch by the turning of the inside roller,so there are some voice when using,which is as a normal situation.