Portable Handheld Timer Digital Stopwatch Multifuction Professional Indoor Outdoor Sports Running Training Timer Stopwatch 10-100 tracks 100% brand new and high quality Features: Shutdown function: It can be powered off and the clock does not need to be reset (currently most of the stopwatches on the market do not have a shutdown function). Key mute function: It can be muted to meet the quiet link. Time calendar function: display year, month, day, hour, minute, second, week, 12/24 hour system optional. Stopwatch function: three rows display 10/30/60/100 runway, segmented memory storage, accurate value up to 1/100 second time, maximum time 9 hours 59 minutes 59 seconds. You can view the fastest, slowest, and average values. When you search for memory data, you can check it up and down. Each function is easy to use. Countdown function: You can set the countdown and count the number of times. The longest countdown is 9 hours, 59 minutes and 59 seconds, and there is a counting function. Daily alarm clock function: Quickly turn on/off the daily alarm clock. Metronome: The beat frequency can be selected 5 times / min - 320 times / min (multiple times of 5) and count function. Specification: Display: 3 rows display of 10/30/60/100 tracks Shell material: ABS Powered by: CR2032 button battery (Not included) Dimensions: 63x80x20mm/2.48x3.15x0.79inch Color: Black Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Digital Stopwatch Timer (with Retail Package) 1 x Instruction Manual