Sharpen your cycling performance with Edge 500, a lightweight GPS-based cycling computer for performance-driven cyclists. Loaded with data, Edge 500 tracks your distance, speed, location & elevation with high sensitivity GPS. The Edge 500 attaches easily to the stem or handlebars of your bike with its low-profile bike mount. When you're ready to ride, just power on your Edge, acquire GPS satellites & go. Edge 500 features a high-sensitivity GPS receiver with Hot Fix satellite prediction to calculate your position faster. During your ride, Edge 500 measures your speed, distance, time, calories burned, altitude, climb & descent, & records this data for your review. For extra-precise climb & descent data, Edge 500 also incorporates a barometric altimeter to pinpoint changes in elevation. All Edge 500 versions work with third-party ANT+ enabled power meters to display your power output in watts as you ride. This valuable data shows you how hard you're working, regardless of conditions affecting your ride, so you can train smarter. Other helpful training features include a Courses feature, which helps you compare successive rides over the same route, as well as Auto Pause, Auto Lap & temperature readings. Edge also alerts you if you're moving, but the timer is not running. Once your ride's done, connect Edge 500 to your computer with the included USB (Universal Serial Bus) cable to analyze your performance. With a simple click, you can join a worldwide network of cyclists & outdoor enthusiasts. What's in the Box:* Edge 500* Bike mount*AC charger*USB cable* Owner's manual on disk* Quick start manual