The SkyCaddie SG2.5 GPS unit features the patented IntelliGreen system of information, allowing users to access information about the green from anywhere on the course. Users can also their distances to up to 40 unique targets on each hole, including water hazards, bunkers, fairway targets and greens. Keeping track of score with a handicap is made easy with the Digital ScoreCard feature. See how far you’ve hit each shot by marking your ball on each shot. The rechargeable lithium ion battery lasts up to 14 hours of constant play.