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 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 cases. Note: Phones with thick or large cases may not fit. MAXIMUM FOCUS: Opaque design blocks screen notifications; allows call answering/hanging up through the window. No external screws, enhancing security and durability. Supports better digital habits. 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, any button press cancels the lock. In emergencies, press and hold the main button for 10 seconds to unlock. Emergency unlock function is limited to two uses in total. PORTABLE WITH LONG STANDBY: Compact and lightweight, similar in size to a smartphone. Fully charged in 30 minutes, supports up to 30 days of standby time. Ideal for use in offices, classrooms, libraries, and study areas. Package Includes: Self-Discipline Timer Mobile Phone Lock Box x1