Features: Made of stainless steel with exquisite workmanship, solid, durable, anti-shock, wear resistance and good performance. This stopwatch is specially designed for sports, with a high precision of 0.01 s. Time calendar function: it displays year, month, day, hour, minute, second, week, and 12/24 hour system is optional. Stopwatch function: It has segmented memory storage, accurate value up to 1/100 seconds, maximum time 39 hours 59 minutes 59 seconds. Alarm function: It can be set daily alarm, quickly turn on/off the daily alarm. On time alarm function: you can turn it on/off. Countdown function: it can be set the countdown and countdown function, and the longest countdown is 39 hours 59 minutes 59 seconds, cycling timing and reminder time can also be defined. Light display function: with light button, long press 4s to turn on. It can be turned off to save power, and the clock does not need to be reset. It can be muted to respond to silent link usage. Ideal for sports, daily training, daily use and so on. Stopwatch only, other accessories demo in the picture is not included Specification: Powered by: 1 x button battery (included) Material: Stainless Steel Precision: 0.01s Size: app.7.4 x 6 x 1.5cm/2.91 x 2.36 x 0.59in Color: Steel Quantity: 1 Pc Package includes: 1 x sports stopwatch