HIgh-sensitivity, watch-like GPS receiver that provides exceptional signal reception; 1 piece training assistant that provides athletes with precise speed, distance & pace data;Includes Training Center software, which allows users to download workout data for a detailed analysis;Used for multiple sports such as cycling, cross- country skiing & windsurfing;Data acquired may also be analyzed with MotionBased.com, which provides online mapping & route sharing ;MotionBased.com empowers users with dynamic street maps, aerial images, 3D mapping technology & over 170,000 courses from around the world ; Includes chest strap wireless heart rate monitor.