Time Lock Lcd Display Time Lock Multifunction Travel Electronic Timer, Waterproof Usb Recharg USB lithium battery charging, with screen and 3 small buttons to set hours or minutes, the maximum setting time is 99 hours and 59 minutes. USB charging lasts for 120 hours. When the lock is locked, it will not open and it is impossible to open it by hand. Set the time reasonably. The padlock combination is lightweight and compatible with airport and travel. You can lock your important items at any time to protect your privacy. How do I reset the timer lock? If you find you can not operate the timeout or the LCD is not displayed correctly, reset the timer following the steps below: 1. Press the center of the LCD screen to strip the protective film and tear the film off. You will find a stop under a screw on the left side of the screen. 2. Find a metal pin or metal clip and insert it into the hole and then activate it. 3. When you hear a "Bi" sound in sound mode, the LCD will display correctly. The timeout has been successfully reset. 4. Glue the protective film back on. weight 30g. colour: black Material: ABS Package Contents: 1 * Time Lock