100% brand new and high quality Features:Shutdown function: can be turned off and the timer does not need to be reset (currently most stopwatches on the market do not have a shutdown function). Key mute function: it can be muted to meet silent link. Time calendar function: year display, month, day, hour, minute, second, week, 12/24 hour system optional. Stopwatch function: three rows display runway 10/30/60/100, segmented memory, accurate value up to 1/100 second, maximum time 9 hours 59 minutes 59 seconds. You can view the fastest, slowest, and average values. When searching for memory data, you can check it up and down. Every feature 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 the counting function is available. Daily Alarm Function: Quickly turn on/off the daily alarm clock. Metronome: the rhythm frequency can be selected 5 times/min-320 times/min (multiple times 5) and counting function. Specification:Display: 3 rows 10/30/60/100 songs displayShell Material: ABSarated by: CR2032 button battery (not included)Dimensions: 63 x 80 x 20mm/2.48 x 3.15 x 0.79 inches Color: BlackQuantity: 1 PcNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included:1 x Digital Stopwatch Timer (With Retail Package)1 x User Manual