Smart Time Management Phone Self-lock Storage Box 1. Input voltage: DC 5V0.5A 2. Maximum lock time: 99 hours and 59 minutes 3. Minimum lock time: 1 minute 4. Use time: 6 months 5. Standby time: 1 year 6. Built-in battery capacity: 320mAh 7. Charging time: 1.5h 8. Material: PC+ABS 9. Storage temperature: -20 degrees Celsius to 65 degrees Celsius 10. Working temperature: -10 degrees Celsius to 50 degrees Celsius 11. Internal dimensions: 231x137x82mm (can hold iPad mini) 12. Set the time on time, do not unlock before the time is up, refuse procrastination, and manage time efficiently 13. The time lock box is designed for those who are addicted to mobile phones for a long time and cannot concentrate on study and work, forget to take medicine, cannot control snacks, and forget to remind themselves to exercise, so as to develop good regular living habits 14. Large capacity, can store a variety of items, such as mobile phonesgame consolestabletssnacksremote controlscigarettes and alcohol, etc.