[Sturdy Durable Metal Texture]Our timer lock box is made of sturdy high-quality metal material, ensuring long-lasting durability providing a secure stage solution f your items. Once is locked, it cannot be overwritten. [Powered by Battery 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), we also provide an external Type-C pt 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 Extendable Lock Time]The timed locker will beep 7 times when the lock is about to be activated, 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 befe unlocking. The maximum lock time is up to 365 days. It's great f sht-term goals long-term commitments. Safety Lock Box: A meaningful tool f those everyday cell phone or game or electronics addicts that can be used to lock tempting items when your child lacks self-control s things. 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 user-friendly design: In addition to larger function buttons responsive customized digital display, our multifunctional user-friendly time lock box is very easy to use helps us change bad habits at wk, study f people who overuse electronics during social activities, are addicted to , are distracted by their phones, it can also be used as a medicine lock box. col: Black material: metal Package Contents: 1 x lock box 1 cable Only the above package content, other products are not included. Note: Light reflection different displays may cause the col of the item in the picture a little different from the real thing. The measurement allowed err is 1-3cm.