Features 1、HELP WITH SELF CONTROL: Stay away from gaming, videos, and phone screens with the timer controlled phone lock box, preventing smartphone addiction and enhancing efficiency in working, studying, and reading at home. Focus on driving, sleep check, etc. Enjoy family activities, travel, meals at the dinner table with your children. The phone lock box controls children's phone usage to ensure normal conversation. 2、ELEGANT AND FASHIONABLE APPEARANCE: The shell is covered with 3D wood grain film for a delicate touch. The opaque frame prevents you from noticing notifications on the phone screen, you can answer calls through the cloud window. Screwless design makes it hard to destroy. A powerful strategy to build better habits. 3、HIGH COMPATIBILITY: The internal dimensions of the phone lock box with charger are approximately 17x9.5x2cm, compatible with most cell phones. Note that thick and large phones may not fit in the box, please measure the size with the box before ordering. 4、ERROR TOLERANT MECHANISM: Press and hold the dial vertically for 2 seconds to confirm the time setting, then there is a 5 second 'hesitation period'. During the 'hesitation period', you can cancel the setting by pressing the dial, otherwise it will be locked. As a last resort, you can emergency unlock by pressing and holding the dial vertically for 10 seconds, which can only be used twice in total, use with caution. 5、CONVENIENT AND VERSATILE: The cell phone lock case comes with a rubber wrist lanyard, compact and lightweight, easy to carry. It can standby for 30 days after fully charged in 30 minutes. You can conveniently bring the lockable storage case to the office, classroom, library and study room. Specification Item Type: Cell Phone Lock Box Material: ABS Battery Type: Battery (Shipped with Built in Battery) Battery Capacity: 300mAh Package List 1 x Phone Lock Box 1 x Charging Cable 1 x User Manual