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 timing. If timing is in progress, press the D key to stop. Press the S key to reset to zero. 2. Time, Calendar, and Alarm Display: In normal 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. Specifications: - Material: Durable plastic construction for reliable performance during sports and outdoor use. - Display: Clear digital LCD showing hour, minute, second, month, date, and weekday. - Time Format: Supports both 12-hour and 24-hour display. - Alarm Function: Set customizable alarms; includes hourly chime option. - Accuracy: 6-digit display with 0.01-second precision for lap timing and athletic activities. 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 images.