Name: Timing cell phone lock box Battery capacity: 350mAh Inner diameter: 170*90mm Outer diameter: 215*94mm Material: plastic, ABS Features: with timer, LCD display, self-discipline tool Description CONVENIENT CALL MANAGEMENT: The phone lock box's T-shaped opening design allows for seamless answering of calls without compromising security or attention while performing important tasks. PORTABLE AND LIGHTWEIGHT: Designed for on-the-go use, this compact and lightweight phone lockbox promotes responsible habits among children, students and adults. REAL-TIME LCD DISPLAY: The extra-large LCD display shows the exact time and battery level in real-time for added convenience and improved monitoring capabilities. UNIVERSAL COMPATIBILITY: Measuring 21.5x9.4x2.3cm, this cell phone self-regulation box is a wide range of smartphones, ensuring versatility and ease of use on a variety of devices. ENHANCES SELF-DISCIPLINE: Use the cell phone timer box to develop self-discipline during important moments such as test preparation, studying or working, effectively curbing distractions and improving work efficiency. Package Includes: 1 x Timer Phone Lock Box 1 x USB cable 1 x Instruction Manual