The iFetch Too Interactive Ball Launcher is an award-winning machine and a top pick among dog owners. This launcher stands under 15 feet high, making it versatile enough for most dogs. It has three launch distances, 10 feet, 25 feet, and 40 feet, which is easily set by pushing a button. You can also set the launcher to random, and it will toss balls are various distances to give your dog variety. The iFetch Interactive uses tennis balls and other balls of the same size without a problem and comes with three balls. It also includes a power adapter to plug the launcher in and use it indoors, but it also has a rechargeable battery so you can take it outside.
When using the battery mode, this launcher tends to throw balls at shorter distances, and it doesn’t hold a charge for very long. The feeder tray is also a bit shallow. Though it is coned shaped and has an incline to help guide balls into the launcher, some overzealous dogs may drop balls at an awkward angle or too hard and cause the ball to pop back out.
Article source: https://www.technobuffalo.com/automatic-dog-ball-launchers