Name: Self-Regulating Timed Mobile Phone Lock Box Battery Capacity: 400 mAh Product Size: 21 x 9.3 x 2.3 cm Material: Plastic, ABS Description: IMMEDIATE CHANGE: If your mobile phone habits are interfering with your health, relationships, and responsibilities, it may be time to make changes. Studies have shown that a timed phone lock box can effectively increase time away from your phone, helping you focus on work, study, and life. FITS MOST CASELESS PHONES: The internal dimensions of the phone lock box are approximately 6.77 x 3.35 x 0.63 inches, compatible with 14/14 Pro/14 Pro Max/13/12/11/X/XR/XS/8/7/6 Plus, , and other similar-sized devices. Note: Phones with thick or large cases may not fit. Note: Extra-large or bulky phones may not be suitable for this phone lock box. MAXIMUM FOCUS: The opaque design prevents visibility of screen notifications; allows call answering/hanging up through the clover-shaped window; no external screws, enhancing security and resistance to tampering. Supports development of healthier phone usage habits. FAULT TOLERANCE: Press and hold the large button for 2 seconds to confirm time settings, followed by a 5-second countdown delay period. During this time, settings can be canceled by pressing any button. If not canceled, the device will lock automatically. As a last resort, press and hold the large button for 10 seconds to perform an emergency unlock. This emergency function can only be used twice in the product's lifetime—use with caution. PORTABLE WITH LONG STANDBY: Compact and lightweight, similar in size to a smartphone. Fully charges in 30 minutes and supports up to 30 days of standby time. Convenient to carry to the office, classroom, library, or study room. Package Includes: Self-Discipline Timer Mobile Phone Lock Box x 1