GPS SENSOR PROVIDES PRECISE LATITUDE, LONGITUDE ;& ALTITUDE DATA FOR EXACT LOCATION INFORMATION; MARK SPECIFIC LOCATIONS & NAVIGATE;TO POINTS USING AN ELECTRONIC MAP; RETRACE STEPS TO A STARTING POINT OR REVERSE NORMAL; TRACK CALORIES BURNED; AUTOMATICALLY RECORDS UP TO 5,000 LAPS BY DAY OR WEEK; STORES APPROXIMATELY 2 YEARS OF DATA; PERFORMANCE DATA CAN BE AUTOMATICALLY ARCHIVED & CALCULATED; AUTOMATED ;STOPWATCH PROVIDES AUTOLAP & AUTOPAUSE FEATURES; LAP TIMER INDICATES WHEN A CERTAIN SPEED IS REACHED OR WHEN THE SPEED FALLS BELOW A PRE-SET LEVEL; PACE WHISTLE SOUNDS ALERT WHEN TRAVELING SLOWER OR FASTER THAN DESIRED PACE; DISTANCE WHISTLE SOUNDS WHEN A SPECIFIC ;DURATION OR DISTANCE IS REACHED; SCREEN SIZE: 92 inchH X 1. 44 inchW; DIM: 1. 7 inchH X 3. 3 inchW X. 9 inchD SUBCATEGORY2: GPS RECEIVERS. Warranty: ONE YEAR.