1. Material: ABS 2. Power supply: contains an AG3 button battery 3. Display type: LCD digital liquid crystal 4. Function: display time (hour, minute), display date (month, day) 5. Movement type: electronic 6. Waterproof grade: not waterproof 7. Applicable scenarios: studying for exams, working and going to work to see the time, etc. 8. Features: exquisite and compact, easy to carry, wear-resistant and fall-resistant, comfortable to the touch, with hanging buckle, can be hung on the school bag 9. Note: The time is displayed in 12-hour format 10. Single weight: about 13g 11. Single size: sleek model is about 6.5x2.5x1.2cm, triangle model is about 5.2x2.2cm