SkyCaddie SG1 Golf GPS (Dark Blue) Golf GPS unit designed for occasional golfer looking for distance to the green Always know how far you are from the center, front or back of the green Plot greens yourself, or subscribe to one of three SkyCourse memberships for access to up to 16,000 courses Large, easy to read numbers; simple to use as a cell phone or remote control Rechargeable battery provides up to 10 hours of continuous use