The Dog Fetch Machine for small dogs has 3 launch distances and you can set the throw distance to 10 feet, 20 feet or 30 feet. You can customize the game based on the distance of the playing space and your dog's energy level.The launcher has a built-in rechargeable lithium battery that lasts 5-6 hours on a full charge. The material is safe, environmentally friendly and odorless.Launcher is not only perfect for playing and training with your dog, but also for keeping your pet active and healthy. Widely used to provide entertainment both indoors and outdoors in your backyard, it is a great companion when you play with your dog.