①. Simple Stopwatch - High precision, 1/100 second accuracy; Light weight, made of lightweight plastic, only 40g; Small volume, easy to carry, stopwatch with lanyard, you can hold it on your hand or around your neck. Suitable for sports training, competition, racing, fitness, etc. ②. Silent Function Without "Beep" - Stopwatch with silent function, easy to switch mode between silent and normal, no more "beep". Tip: In clock mode, press [RESET] and [SELECT] together, to turn off the "beep" every hour. Suitable for tests, exams, experiments, speeches, classrooms and any quiet occasion. ③. Backlight Function - Click [light] turn on the light for a few seconds, it helps you train at night, this function can only be used in a dark environment and at night. Tip: This function is not obvious during the day. ④. Countdown Timer - The maximum countdown time is long up to 29:59:59. The maximum time for the countdown timer is long up to 29:59:59. In addition, the countdown timer can set the duration of the prompt sound, very useful for resting in fitness. ⑤. Size: about 88*68*18 mm; ⑥. Quantity: 1 piece ⑦. Color: Green