Name: Self-Regulating Timed Mobile Phone Lock Box Battery Capacity: 400 mAh Product Size: 21*9.3*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 changes. Studies have shown that a timed phone lock box can effectively increase your time away from your phone, helping you focus on work, study, and life. FIT MOST CASELESS PHONES: The internal dimensions of the phone lock box are 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. Note: Phones with thick or large cases may not fit. Note: Extra-large or unusually shaped phones may not be suitable for this device. MAXIMUM FOCUS: The opaque design prevents you from seeing screen notifications; you can answer or end calls through the clover-shaped window. No external screws make it difficult to tamper with. A practical tool to support better daily habits. FAULT TOLERANCE: Press and hold the large button for 2 seconds to confirm the timer setting, followed by a 5-second countdown delay period. During this time, you can cancel the setting by pressing any button. If not canceled, the device will lock automatically. As a last resort, press and hold the large button for 10 seconds to unlock urgently. 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 smartphone. Fully charged in 30 minutes, it can remain in standby mode for up to 30 days. Convenient to carry to the office, classroom, library, or study room. Product List: Self-Discipline Timer Mobile Phone Lock Box *1