The Elixir Golf GPS Caddy Caddie Range Finders Hat Clip Caddietech X1 State of the art Ultra Slim & Light: only 0.85 Oz. weight and 0.3 inch height makes your play more comfortable. You can even wear it on the cap, the belt, and everywhere! Do not make anything bother you during the play Water Resistant: It is water resistant so can be used on rainy day Talks and Sees: Simply push buttons. It tells and shows you the more accurate distances whenever you need. You can use both or choose what you prefer to. It informs you the distances where you are standing to the front, center, and back of greens. You don't have to guess anymore Free Updates: It is preloaded golf courses from all around world and you can update and change courses easily by course manager. There is no annual fees or extra charge. We will keep updating all recent courses for your enjoyable golf. Odometer & Paying Time: Caddietech lets you know how much distance and time you played. It also can be used when you run on typical days.