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 a change. Studies have shown that a timed phone lock box can help increase focus by reducing phone distractions during work, study, and daily 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 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 call answering and hanging up through the clover-shaped window. No external screws, enhancing security and durability. FAULT TOLERANCE: Press and hold the large button for 2 seconds to confirm time settings, followed by a 5-second countdown period. During this time, you can cancel the setting by pressing any button. 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 device's lifetime—use with caution. PORTABLE WITH 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 x 1