The LCD screen displays the unlocking time, and there will be a 5 second beep before the timer starts. Press any key to cancel it. A USB charging data cable is delivered.<br><br>By using a locked container box, you can reasonably control the time you spend looking at your phone and develop a good life habit for you.<br><br>There is no complicated operation, you only need to set the unlocking time, when the set time is reached, you can open the lock box.