Product Description Material: ABS Size: 75x62x21mm Color: white, army green Battery: CR2032 button battery (included) Quantity: 1pcs Package content: 1xTraining running watch 1.LAP AND SPLIT MEASUREMENT FUNCTIONYS-810 saves 10 reminders for events. It can measure up to 10 hours in 1 or 100 second. YS-8100Allow to record in both the lap and split time with the ability to store 100 memories for events. It also can measure up to 10 hours in 1 or 100 seconds. 2.MEMORY RECALLED FUNCTIONYS-810 Up to 10 measured values can be stored in the memory.YS-8100 Up to 100 measurements can be stored in memory, and they can be recalled with the fastest lap, slowest lap and average lap time, also can recall each split or lap time in the order. 3.THREE ROWS DIGITAL DISPLAY LARGE SCREEN Lap time, split time and the total continue-moving time are displayed in the same screen with three separated rows.It is suitable for sports coach, easy to view time and record date. 4.MULTIFUNCTION STOPWATCHStopwatch with countdown timer, calendar clock and alarm allow you to manage the time better in sports and daily life. 5.COUNTDOWN TIMERThe stopwatch is with the countdown function, can be used as a countdown timer. Press the Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.