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 help increase focus on work, study, and daily life by reducing phone distractions. FITS MOST CASELESS PHONES: Internal dimensions approximately 6.77 x 3.35 x 0.63 inches. Compatible with iPhone 14/14 Pro/14 Pro Max/13/12/11/X/XR/XS/8/7/6 Plus, Motorola, and other similarly sized phones without thick cases. Note: Phones with large or thick cases may not fit. MAXIMUM FOCUS: The opaque design blocks screen notifications to minimize distractions. Allows call answering/hanging up through the window. No external screws, enhancing security. Supports habit-building with focused time management. FAULT TOLERANCE: Press and hold the main button for 2 seconds to confirm timer setting, followed by a 5-second countdown period. During this time, press any button to cancel. If not canceled, the device will lock automatically. Emergency unlock function: Press and hold the main button for 10 seconds. This emergency unlock can only be used twice in the product's lifetime—use carefully. PORTABLE WITH LONG STANDBY: Compact and lightweight, similar to a smartphone. Fully charged in 30 minutes, supports up to 30 days of standby time. Convenient for use in offices, classrooms, libraries, and study rooms. Product Includes: Self-Discipline Timer Mobile Phone Lock Box *1