1. ### Product - It is charged by a USB lithium - battery and is equipped with 3 small buttons for setting hours or minutes. The maximum setting time is 99 hours and 59 minutes. - USB charging can last for 120 hours. - When the lock is locked, it will not open and cannot be opened manually. Please set the time reasonably. - The combination padlock is lightweight and suitable for airport and travel security. You can lock important items at any time to protect your privacy. 2. ### How to reset the timed lock? If you find that you cannot operate the timeout setting or the liquid crystal display shows incorrectly, you can reset the timer as follows: 1. Press the center of the liquid crystal display, uncover the protective film and tear it off. You will find a small hole under the screw on the left side of the display. 2. Find a metal needle or metal clip and insert it into the hole, then operate. 3. When you hear a “beep” sound (in the audible mode), the liquid crystal display will show correctly. The timeout setting has been successfully reset. 4. Re - stick the protective film. 3. ### Product parameters - Weight: 57 grams - Color: White - Material: ABS - Package contents: 1 timed lock Only the above - mentioned package contents are included, and no other products are included. 4. ### Notes Light reflection and different displays may cause the color of the item in the picture to be slightly different from the actual one. The allowable measurement error is +/- 1 - 3 cm.