XJ-398 Portable Handheld Waterproof Digital Stopwatch Timer with Strap - Item Name: Multi-Function Digital Sports Timer - Material: Plastic - Color: Black/Yellow - Power: AG13 Button Battery (included) - Size: 9.0 x 6.45 x 2.0 cm - Weight: 50g - Quantity: 1pc **Operation:** 1. **Stopwatch:** Press the M key to start timing. Press D to stop, and S to reset to zero. 2. **Time, Calendar, and Alarm Display:** Press D to view the month, day, and week. Press S for the alarm time. 3. **Time and Calendar Setting:** Press M three times to enter setting mode. Use S to adjust minutes, hours, days, months, weeks, and seconds. Press M to return to normal display. **Specifications:** - **Features:** High-quality, waterproof, LED display for hour, minute, second, AM/PM, month, date, and day of the week. - **Hour Selection:** Choose between 12 or 24-hour format. - **Alarm Function:** Includes an alarm and hourly chime. - **Timing Accuracy:** 6-digit display with 0.01 seconds accuracy. **Package Includes:** 1x Multi-Function Digital Sports Timer **Notes:** - Transition: 1cm = 10mm = 0.39 inches. - Please allow 1-3mm error due to manual measurement. - Monitor differences may affect color representation. Thank you!