[Sturdy and Durable Metal Texture]Our timer lock box is made of sturdy and high-quality metal material, ensuring long-lasting durability and providing a secure storage solution Compatible your items. Once is locked, it cannot be overwritten. [Powered by Battery or USB Connection]Many customers complained that they could not unlock the phone lock box if the battery out. Our phone locker has solved this problem. It's powered by 4 AA batteries (not included), and we also provide an external Type-C port in case the battery dies. So even if the battery dies during locking, the timed-release lock box can still be unlocked via external USB-C power in an emergency. [Audio Alerts and Extendable Lock Time]The timed locker will beep 7 times when the lock is about to be activated, and 1 beep when the lock time is over, which can as a useful reminder of the lock box status. You can also turn off audio prompts if desired. This mobile jail allows you to increase the time remaining beCompatible e unlocking. The maximum lock time is up to 365 days. It's great Compatible short-term goals and long-term commitments. Safety Lock Box: A and meaningful tool Compatible those everyday cell phone/game/electronics addicts that can be used to lock tempting items when your child lacks self-control s things. And our mobile phone lock box is designed with a child lock button, which can effectively prevent children from pressing any buttons at will, causing unnecessary locks. Multifunctional, practical and user-friendly design: In addition to larger function buttons and responsive customized digital display, our multifunctional user-friendly time lock box is very easy to use and helps us change bad habits at work, study Or Compatible people who overuse electronics during social activities, are addicted to , or are distracted by their phones, it can also be used as a medicine lock box. Black material: metal Package Contents: 1 x lock box 1 cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.