LED backlight clearly displays screen information in low light conditions. A plastic film on the screen helps protect the display. Multi-function: Stopwatch mode, time mode, countdown mode, and alarm function. Split recall memory: Stores up to 2 lap times within a 39-hour range and allows recall. Alarm and mute function: Option to turn off the alarm sound. Ideal for sports and football matches, suitable for coaches, training sessions, runners, adults, and children. Focused on high-quality items; quality is our priority. This stopwatch delivers reliable performance. Stopwatch Instructions: 1. How to turn on/off the alarm? Press the "M" button to switch from "Clock" mode to "Alarm Clock" mode, then press the "S" button once to activate or deactivate the alarm. 2. How many modes are available? Four modes: Clock, Stopwatch, Countdown, Alarm Clock. Plastic film: Before using the stopwatch, the protective plastic film can be removed. If left on, it does not cause significant visual interference. Color: Silver Material: Metal Size: 74 x 60 x 15 mm Package Contents: 1 x Stopwatch (with battery installed) Note: Lighting and monitor settings may cause slight color differences between the image and the actual item. Measurement tolerance: +/- 1-3 cm.