[Sturdy and Durable Metal Construction] The timer lock box is made of high-quality metal material, ensuring long-lasting durability and providing secure storage for your items. Once locked, the box cannot be opened until the timer expires. [Power Options: Battery or USB Connection] This lock box operates on 4 AA batteries (not included) and features an external Type-C port for emergency power. If the battery runs out during use, you can connect a USB-C power source to unlock the box in an emergency. [Audio Alerts and Adjustable Lock Time] The timer emits 7 beeps when the lock is about to activate and 1 beep when the time is complete, serving as a status reminder. Audio alerts can be disabled if preferred. The lock time can be extended before unlocking, with a maximum setting of up to 365 days, making it suitable for both short-term goals and long-term commitments. [Safety Lock Box] This device provides a practical solution for managing distractions caused by cell phones, gaming devices, or other electronics. It helps promote focus and self-discipline, especially for children who need support with self-control. Equipped with a child lock feature to prevent unauthorized access or accidental operation. [Multifunctional and User-Friendly Design] Featuring large function buttons and a responsive digital display, this time lock box is easy to operate. Ideal for improving focus during work, study, or social activities by limiting access to electronic devices. Can also be used to securely store medicine or other sensitive items. Color: Black Material: Metal Package Contents: 1 x Lock Box 1 x Power Cable Note: Light reflection and differences in display screens may cause slight variations in color. Measurement error is +/- 1-3 cm.