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 usage. 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 bulky cases. Note: Phones with thick or large cases may not fit. MAXIMUM FOCUS: The opaque design blocks screen notifications to minimize distractions. Allows answering or ending calls through the designated window. No external screws, enhancing security and durability. Supports development of healthier phone usage 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, pressing any button cancels the lock. After locking, emergency unlock is available by holding the main button for 10 seconds. Emergency unlock can only be used twice in the device’s lifetime—use with caution. PORTABLE & LONG STANDBY: Compact and lightweight, similar in size to a smartphone. Fully charged in 30 minutes, provides 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 x1