Features: 1. Metal Material: The time lock box is made of premium metal, which is strong and durable and not easy to break or damage. Perfect for school cabinet shelves, classrooms, homes, kitchens, bedrooms, offices, etc. (The top cover is made of ABS plastic). 2. Dual Power Supply: The timed lock box can be powered by 4 AA batteries or via an external USB-C port. If the batteries lose power during locking, it can be unlocked using an external USB-C power source in emergency situations. 3. Safe Design: The phone lock box includes a child lock button to prevent children from accidentally pressing buttons and causing unintended locking. It can also be used as a storage box for knives, tablets, and other potentially hazardous items. 4. Easy to Use: The time lock container features large function buttons and a responsive digital display, making it simple to operate. It helps support behavior changes such as reducing smoking, limiting alcohol consumption, or minimizing excessive electronic device usage. 5. Habit Formation: The timed lock container can be set for up to 365 days, allowing users to schedule lock periods to manage snacking, gaming, or other habits, promoting a healthier lifestyle. Specification: Item Type: Timed Lock Box Material: Metal Power Supply: USB-C or Battery Powered Battery Type: 4 x AA Batteries Required (Not Included) Package List: 1 x Timed Lock Box 1 x Power Supply Cable 1 x Instruction Manual Note: Manual measurement, please allow for slight variations.