Name: Self-Regulating Timed Mobile Phone Lock Box Battery Capacity: 400 mAh Product Size: 21*9.3*2.3 cm Material: Plastic, ABS 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: Internal dimensions 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, Motorola, and more. Note: Phones with thick or large cases may not fit. MAXIMUM FOCUS: The opaque design prevents visibility of screen notifications. Answer or hang up calls through the clover-shaped window. No external screws, enhancing security and durability. A practical tool for building better habits. FAULT TOLERANCE: Press and hold the large button for 2 seconds to confirm time settings, followed by a 5-second countdown. During this period, press any button to cancel. If not canceled, the device will lock automatically. In emergencies, press and hold the large button for 10 seconds to unlock. Emergency unlock 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 mobile phone. Fully charges in 30 minutes and supports up to 30 days of standby time. Ideal for use in offices, classrooms, libraries, and study rooms. Package Includes: Self-Discipline Timer Mobile Phone Lock Box *1