Time, date and alarm function: these sport stopwatches are designed with countdown , calendar clock and alarm, which allow you to manage the time better in sports and , perfect for sports , easy to view time and record dates. Easy to operate: our digital stopwatch can easily start, stop and reset your timing by pressing this outer button, featured with the group of count up function (1/100 sec, maximum: 23 hour 59 min 59 sec) to precisely measure multiple events. and easy to carry: each sport stopwatch comes with a lanyard; You can take it with your hand, put it in your pocket, or stowed around the neck with the lanyard, easy to carry out and avoiding its missing. Waterproof material: our waterproof sport are made of quality plastic material, , lasting and weatherproof to use; You can carry it with you even some underwater exercise, such as swimming, diving, surfing and more. Wide applications: our sports stopwatch are the perfect time measurement device for athletes, runners, coaches and referees, suitable for running, swimming, training, tracking matches, competitions, athletics and so on. Colour: black Material: plastic Package Contents: 24 * Stopwatch Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.