Long Battery Life - This is a premium lithium battery with a lifespan of 1.5 years. Thanks to the high-quality buttons, each press is made at the right time. The unique round case design resists cracking, so you don't have to worry about dropping it. 1/100th of a second resolution: Measure time with an accuracy of one hundredth of a second. Use the split function to precisely measure multiple events. Time, date and alarm functions: Switch between 3 display modes to check the time and date and set your alarm. Lightweight: Thanks to its ultra light weight and the supplied lanyard, this sports stopwatch is the ideal stopwatch for athletes - especially runners - coaches and referees. Waterproof: Suitable for all weather conditions. Whether it's rain, snow, frost or sunshine. Features: Waterproof. Displays hours, minutes, seconds , AM/PM indicator, month, date and day of the week. This sports digital stopwatch allows you to display the time in 12 or 24 hour format. Stopwatch with time signal. More comfortable compass design. High quality and outstanding performance. Features: Material: plastic. Power supply: button battery (not included). Dimensions (L x W x H): 8.0 x 6.4 x 2.0 cm. Color: black. Box contents: 1 multifunctional sports stopwatch.< /p> Note: This does not include other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you! Welcometomeet