DescriptionModel: YS Y-810 Material: ABS Battery: CR2032 Water Resist: NoFeatures:On/off function to save battery lifeButton sound can be mutedCalendar, clock and alarm functionsStopwatch function record up to 9 hr 59 mins 59 secs, at 1/100 seconds accuracy, with split mode 10 laps memory, average/fastest/slowest lap recallCount down timer for up to 9 hr 59 mins 59 secsMetronome function: Frequency from 10 to 320 times per minuteThree lines large displayEasy battery replacement (cover)
