1. Stopwatch function supports timing up to 99 minutes, 59 seconds, and 99 milliseconds. 2. Timer function supports up to 99 minutes and 59 seconds. Users can set a specific time for countdown, start counting from zero, and the device will automatically stop when the preset time is reached. 3. Countdown function supports up to 99 minutes and 59 seconds. 4. Clock function with 12/24-hour display format. H1 indicates 24-hour mode and H2 indicates 12-hour mode. Display modes can be switched using the remote control. 5. Interval timer function allows users to set training and rest periods for fitness activities. Training time is marked as F, rest time as C, and C C represents the number of cycles. Each timing group can be assigned to different shortcut keys. - Key: 8 preset exercise groups (F1–F8 for workout time, C1–C8 for rest time). Default setting: 20 seconds exercise, 10 seconds rest. Press the key and then start to begin. - FGB Key: Single press enters F1 mode – 5 minutes exercise, 1 minute rest, repeated 5 times. Double press enters F2 mode – 5 minutes exercise, 1 minute rest, repeated 3 times. - EMOM Key: Fixed program with one-minute countdown. Starts countdown from 60 seconds upon activation. - 10Sec Button: Press once to enable 10-second preparation time; press again to cancel. Timing starts directly if preparation is skipped. 6. Adjustable display brightness with five levels. 7. 6-digit dual-color display: 2 green digits and 4 red digits. 8. Installation options: desktop placement or wall hanging. 9. Visible range: up to 20 meters. 10. Digit height: 40mm. 11. Power supply: USB powered. 12. Suitable for use in gyms, boxing centers, sports events, and training sessions. 13. Plug type: Standard plug compatible with Indonesia, Germany, France, Italy, and other regions. 14. Voltage: AC 220V. 15. Color: Black. 16. Material: Aluminum alloy. Package Contents: 1 × Clock 1 × USB Cable 1 × Remote Control 1 × English Instruction Manual Note: The package includes only the items listed above. Light reflection and differences in screen displays may cause slight variations between the product color shown and the actual item. Measurement error allowed within +/- 1-3 cm.