Features: [Self-Control]: It's suitable for people who are addicted to games, night owls and lack of self-discipline. Reduce the time of watching mobile phone, control children's toys, go to sleep early, improve sleep quality, and have a more healthy life-style. Better time management, improve work efficiency and focus. [Intelligent Timing Function]: Put your phone or thing into box and close the cover. Press the lock button to start the machine, then set the time, and double-press the lock button, 10 seconds countdown, the box locks automatically, easy to use. [Fits for Most Mobile Phone]: Maximum Setting Time 99 hours and 59 minutes. The internal space size is about 18.3 x 8.7 x 1.5cm / 7.2 x 3.4 x 0.6in, compatible with most mobile phone such as for i Phone XS Max/XS/XR/X/8/7, for Sumsung, for Huawei, etc. [Built-in Battery]: Built-in 900mAh rechargeable battery, 4 hours charging time, 30days standby time. Support mobile phone face up or face down. The locker box cover has several holes, if the mobile phone is face up, some functions of the mobile phone can be operated. [Fashion and Portable Design]: Made of high-quality material, compact and durable. Fashion a simple appearance design, portable and lightweight, easy to carry. Suitable for children, adults and family use. Specifications: Name: Smart Phone Lock Voltage Input: DC 5V/0.5A Charging Port: Type-C and Light-ning Battery: 900mAh,3.7V Charging Time: 4 Hours Endurance Time: 30days Storage Temperature: -20℃ - 65℃ Working Temperature: -10℃ - 50℃ Maximum Setting Time: 99 hours and 59 minutes Inner Size: 18.3 x 8.7 x 1.5cm External dimensions: 191 x 120 x 24mm Material: plastic colour: transparent Package Contents: 1 x Timer Phone Locker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.