* Easy-to-install: no calibration required. Just snap it in the included bike mount and go * High-sensitivity GPS receiver knows your position even in tree cover and canyons, making it extremely reliable for navigation * Customizable cycle computer shows up to eight different data fields for continuous feedback * Virtual Partner lets you "race" a virtual competitor, making training fun * Course lets you "race" against a recorded course to try to match previously set speeds at every point along the way * Auto Pause pauses the training timer when you slow down below a specified speed and resumes when you speed up again so you can focus on your ride * Auto Lap automatically triggers a lap every time you pass a specified location or travel a preset distance * Training Center software gives you the ability to create workouts, manage and download courses, and create a detailed post-ride analysis that charts your performance. * The heart rate monitor lets you see whether you are training too hard or not enough. The heart rate monitor uses a robust wireless technology that eliminates cross-talk and interference and sends heart rate data to the Edge via a soft, comfortable chest strap. This data is stored with each track point for post-workout analysis. * The self-calibrating wireless speed/cadence sensor allow you can monitor your pedaling cadence as you ride. Like the heart rate monitor, the speed/cadence sensor uses the same robust wireless technology to measure and report your pedaling strokes per minute. * With its waterproof, sleek design, the Edge is the perfect companion on any bike, and attaches to either the stem or handlebars. Its rugged case frames an easy-to-read, large, backlit display that can show up to eight different data fields along with altitude and a map view. * Included Training Center software gives you the ability to overlay your ride data onto a course map. It offers interactive analysis tools that measure your speed, distance, climb, and descent against varying terrain, elevation and more. Create and schedule custom workouts or use workout templates and download to the Edge. Specifications * GPS: High-sensitivity SiRFstarIII receiver * Antenna: Built-in patch GPS antenna * Weight: 88 g, 3.1 oz. * Display: 1.17"W x 1.44"H, 128 x 160 pixels, 4-level grayscale LCLD with backlighting * Unit dimensions: 1.75"W x 3.7"H x .9"D (44 x 94 x 23mm) * Waterproof: IEC 60529 IPX7 standards (submersible in one meter of water for up to 30 mins.) * Battery: Up to 12 hours (typical use); rechargeable internal lithium ion * Track log: 13,000 track points