Features: 1. High-definition mirror reflects light and shadow, paired with a silver rotating shell for a sleek visual effect. Stylish, agile, and minimalist design. 2. Precise electronic timer eliminates the need for repeated mechanical pressing every 5 seconds, enabling quick and easy adjustment. 3. Large mirror with high-definition digital display; numbers are clearly visible at a glance, whether standing or sitting. 4. Silent digital display timing design ensures quiet operation, ideal for calm learning and focused office work. 5. Three levels of timing reminders, adaptable to different environments and volume needs. 6. Adjustable range from 00:00 to 99:55; supports both forward and reverse timing for simple time measurement. 7. Easily attaches to blackboards, refrigerators, and other metal surfaces; securely holds without falling off. Notice: - Actual color may vary slightly due to differences in monitor displays and lighting. - Please allow 1–3 cm deviation due to manual measurement. Product Information: 1. Name: Rotating Countdown Timer 2. Material: ABS 3. Color: Black 4. Working Voltage: 4.5V (3 AAA batteries required, not included) 5. Working Temperature: 0°C to 50°C 6. Timing Range: 99 minutes 55 seconds 7. Volume Settings: Silent (0dB), Low (60–70dB), High (80–90dB) 8. Product Dimensions: 78 x 78 x 27.5 mm 9. Countdown Setting: - Turn the knob to set the desired countdown time; press the mirror to start. - Rotate right to increase, rotate left to decrease. - Rotation greater than 60 degrees allows fast minute adjustment; below 60 degrees adjusts seconds at normal speed. - For forward timing: Set to 00:00, press the mirror to start. Long press for 1 second to pause. Package List: 1 x Timer