digital stopwatch timer with lanyard, high precision, low energy consumption, easy to use, perfect for sports.^ NECESSARY FOR COACHES - light weight, small in volume, easy to carry, stopwatch include lanyard, you can hand held it or round the neck, perfect for kids training or sports match;^ 1/100 Second Split Timing, Measure time at an accuracy of one hundredth of a second. Use the spl time feature to precisely measure multiple events.^ While on the normal time display, hold the left button to show the alarm display and then press the right button to toggle it off and on. And when the alarm sounds, you can press the left or the right button to turn off the alarm.^ After-sales-If you have any questions about our products, please contact us in time.