General Features & Advantages Two automatic training programs per age input (Fat Burning Program and Build Cardiovascular Strength Program) Freely programmable Target Zone & exercise time Three different audible alarms Two different visual alarms Current heart rate intensity % Efficiency percentage of preset exercise time Preset exercise time countdown(Over low limit) Current heart rate display 35-250 Beats per minute Maximum heart rate recorded 35-250 Beats per minute Average heart rate in 6 optional periods (10-60 minutes) Total time over High Limit of Target Zone (Up to 9:59:59) Total time over Low Limit of Target Zone (Hour/Minute/Second) Stopwatch 9:59:59(Hour/Minute/Second) 12/24 Hour clock Unique transmission LED indicator Target Zone indicator Target Zone re-settable and re-checkable Current cardiovascular strength level Time bar in seconds EL backlight EX-factory 30 meters water - resistant(Watch) EX-factory 10 meters water - resistant(Transmitter) Weak battery detection 3V Batteries changeable Auto power saving