The AIRE from SkyCaddie is extremely affordable and offers fun, convenient versatility. It’s ultra-light, so you can wear it on your belt, hang if off your bag or clip it to a push cart. Get trusted, reliable distances everywhere on the course and make smart decisions on approach. The AIRE features a 1.8 inch greyscale screen with Front, Center and Back of Green distanced that update as you walk or ride. It’s compact and offers Auto Course Recognition, Auto Hole Advance, Auto Distance Update and Scoring. The AIRE also features an odometer, so you can track the miles you walked while playing golf. It will even let you know how many calories you burned. Play better and have more fun with the AIRE from SkyCaddie, the #1 Rangefinder in Golf.Features: Big, easy-to-read front, center and back of green distances High precision ground-corrected course maps* Over 30,000 Updatable Preloaded, ready-to-play updatable course maps† Odometer and Calorie Counter Waterproof: IPX 6 Extras: Clock, timer, alarm, 12 languages, pace-of-play clockHardware: Intelligent Automation (Auto Course, Auto Hole, and Auto Distance) Battery - Re-chargeable (Up to 10 hours with 8-10 hours usage per full charge) Size & Weight Height: 3” Width: 2” Depth: 1” Weight: 2.4 oz System Requirements PC with Microsoft® Windows® XP/Vista/7 (32-bit or 64-bit) MacOS® 10.6 or higher. Intel® processor 512 MB RAM (1 GB recommended) 200 MB of available hard disk space Available USB 1.1 or 2.0 port Internet access (High-speed recommended) Internet Explorer® 9.0, Firefox, Safari, or Crome web browserSoftware:Front, center, and back of green distancesMeasure any shot (Mark Ball)Digital scorecard OdometerCalorie CounterClockTimerAlarmPace of ClockIncludes:SkyCaddie AIREGPS RangefinderUSB cableUser documentation