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 compatible with 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. Name: Timing cell phone lock box Battery capacity: 350mAh Inner diameter: 170 x 90mm Outer diameter: 215 x 94mm Features: with timer, LCD display, self-discipline tool Material: Plastic colour: Black Package Contents: 1 x Mobile phone self-discipline 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.