High quality material and mute function - metal, very durable. Stopwatch with mute mode, absolute silence, no more "BEEP", just change the mode between silent and normal. 100 memories - Very convenient with 1/1000 second accuracy, meet the most basic sports. Light function - the side button can turn on the light for a few seconds so that you can use it at night. Multifunctional stopwatch - football function, stop function, timing function, alarm function, clock function, countdown function, metronome for sports coaches, referees, athletes, footballers, runners etc. Large Screen and Ergonomic Design - With large screen and super large number, easy to view time and record data. The ergonomic design makes your hands comfortable and flexible when pressing the buttons. Material: stainless steel; Colors: silver Features: 1. Display hours, minutes, seconds, day of the week, month and day. 2,100/200 memory locations with 1/1,000 seconds accuracy 3. The longest time: 9 hours 59 minutes 59 seconds 4. In watch mode, press and hold the Mode key" pressed for three seconds to turn off the device "