Waterproof Chronometer Sports Stopwatch Timer Digital LCD Handheld Stop Watch Chronograph With String Timer For Sports Item Name: Multi-Function Digital Sports Timer Material: Plastic Color: Black/Yellow Powered by: AG13 Button Battery (Included) Size (L x W x H): 9.0 x 6.45 x 2.0 cm Weight: 50 g Quantity: 1 pc Operation: 1. Stopwatch Timing: In normal mode, press the M key to start stopwatch timing. If timing is in progress, press the D key to stop, then press the S key to reset to zero. 2. Time, Calendar, and Alarm Display: In normal time mode, press the D key to cycle through month, day, and weekday. Press the S key to view alarm time. 3. Time and Calendar Setting: Press the M key three times in normal mode to enter time-setting mode. Seconds and time flash. Press the S key to select minutes, hours, day, month, weekday, or seconds for adjustment. Press the M key to save and exit to normal mode. Features: 1. Durable plastic construction designed for sports and outdoor use. Waterproof for everyday conditions. 2. Clear digital LCD display showing hour, minute, second, month, date, and weekday. 3. Selectable 12-hour or 24-hour time format. 4. Alarm function with adjustable alarm time. Hourly chime available. 5. High-precision timing with 0.01-second resolution and 6-digit display. Package Includes: 1 x Multi-Function Digital Sports Timer Notes: - Measurement tolerance: ±1–3 mm due to manual measurement. - Screen and lighting conditions may cause slight color variation from product photos.