- Universal Compatibility: Designed to fit most thick-cased mobile phones, with internal dimensions of approximately 18.3 x 8.7 x 1.5 cm (7.2 x 3.4 x 0.59 inches). Compatible with various models, including iPhone 16/15/14/13/12/11/X/XR/XS/8 series, Samsung, Huawei, and more. Note: Some foldable phones may not be supported. - Extended Battery Life: Enjoy up to 30 days of operation on a single full charge. With a maximum timer setting of 99 hours and 59 minutes, this phone jail box encourages reduced screen time and helps users focus on work, study, and daily activities. Super standby mode lasts over 90 days. - Compact and Stylish Design: This portable phone lock box is not only practical but also fashionable. It helps cultivate good habits among kids, students, and adults, promoting focus and productivity. - Dual Locking Options: Choose between two locking methods. With the phone screen facing you, you can use apps (excluding games) through small holes. When the cover faces you, emergency calls can be made using earphones, Siri, or the small holes on the transparent cover. For optimal usage, position the phone screen down to prevent accidental touches. - Emergency Call Functionality: Stay connected even in lock mode. The phone lock box allows for emergency calls through earphones or Siri. A backup power reserve ensures the box unlocks when the timer expires, even if the battery is drained. Use scenarios: - Ideal for students needing to focus on homework without distractions. - Perfect for professionals looking to minimize phone interruptions during work hours. - A great tool for parents encouraging screen-free time for their children. This phone jail box combines functionality, compatibility, and user-friendly design to enhance productivity and promote healthy device habits.