[Sturdy and Durable Metal Construction] The timer lock box is made of high-quality metal material, ensuring long-lasting durability and providing a secure storage solution for your items. Once locked, the box cannot be opened until the timer expires. [Powered by Battery or USB Connection] This lock box is powered by 4 AA batteries (not included) for reliable operation. It also features an external Type-C port, allowing you to connect a power source to unlock the box in case of battery depletion, ensuring access even when batteries are drained. [o Alerts and Extendable Lock Time] The lock box emits 7 beeps when the lock is about to activate and 1 beep when the time is complete, serving as a clear status reminder. o prompts can be disabled if preferred. You can extend the lock time 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 screen time and reducing distractions from phones, games, or other electronics. It includes a child lock feature that helps prevent accidental or unauthorized button presses, enhancing safety and control. Multifunctional and User-Friendly Design] Featuring large function buttons and a responsive digital display, this time lock box is easy to operate. It supports habit-building and focus improvement during work, study, or social activities. It can also be used to securely store medications or other small 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 between the color shown in the image and the actual product. Measurement error is +/- 1-3 cm.