High-Quality Solid Metal - Instead of cheap and fragile plastic box as other offer, is meticulously crafted from high-grade solid metal. It has great security and durability to protect your items and resist any damage. The small timed lock box inner size: 8.03x5.33x1.97inches. Powered by Batteries or USB Connection - Our timer lock box provides 2 charging methods.For daily use, please use 4xAA batteries(no included). Besides, we also offer an external type-C port in case of dead batteries, so even if the batteries run out during locking, you could still unlock our time release lock box through the external USB-C power supply. Once Locked No Override - This is an absolute self-discipline phone lock box. Once set, there is no override until the timer is end! The lock box with timer will make 7 times of Di sound when locking is about to activate, you can press any button to cancel the lock during Di sound, the 7 Di sound allows you to hesitate, so please double-check the timer before locking! Charger Cable Hole & Child Lock - Stay while your devices are securely locked away. Our time lock safe includes a strategically placed hole for a charging cable, allowing you to charge your devices while they are stored inside. With the child lock button, you can keep your items safe from curious little hands. This feature adds an extra layer of security, ensuring that children cannot tamper with the device unintentionally. Help You Promote Self-Control - Our time locking container is a helpful tool for managing screen time, resisting addiction and controlling impulse by limiting access to distractions. You can lock up cellphone/ mini/snack//medicine/alcohol/key/game console/tv remote, etc. The phone lock box with timer is a nice gift for men, women, teens, families, friends, students and anyone looking to enhance focus, discipline, and productivity. Colour:Black Material:Metal Package Contents: 1 * Time lock box 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.