[Extremely Long Standby] You can set the phone lock box's standby time from 1 minute to 99 hours and 59 minutes, with a maximum operating time of approximately 200 days. After a full 2-hour charge, the standby time reaches approximately 200 days, meeting your various needs. This phone storage cabinet features a built-in power supply and timer on the mainboard, automatically unlocking when the timer expires. [Mini Phone Security Lock Box] This phone lock box with a timer has interior dimensions of 21.5 x 9.3 x 2.3 cm. Made of high-quality ABS material, it's easy to carry and operate. [Lock Out Your Phone Addiction] This phone jail lock box has a single hole, ensuring you can use headphones to answer calls in an emergency. This mobile jail allows you to stay away from your phone and focus on work and study instead of being addicted to the Internet and screens, or spend more time doing meaningful things with family and friends. This mini portable mobile jail with timer can help you develop better and healthier living habits. Color: A:Blue Material: ABS Package Contents: 1 x Timer Phone Lock