Product Description Smart Timer Lock with LCD Screen, Multifunctional Travel Electronic Waterproof USB Rechargeable Temporary Padlock Features a USB lithium battery rechargeable lock with a display screen and 3 small buttons. It allows setting hours or minutes, with a maximum time of 99 hours and 59 minutes. USB charging provides up to 120 hours of continuous use. Once locked, it cannot be opened or pried open by hand. Please set the time appropriately. This combination lock is suitable for airports and travel. You can lock away important items at any time to protect your privacy. How to reset the lock? If you find that the timer function is not working or the LCD screen is not displaying correctly, please follow these steps: 1: Press the center of the LCD screen and peel off the protective film. You will find a clip under the screw on the left side of the screen. 2: Locate the metal pin or clip, insert it into the hole, and press down. 3: When you hear a "beep" sound (in sound mode), the LCD screen displays normally. The timeout signal has been reset. 4: Reapply the protective film. Weight: 30 grams Color: Black Material: ABS Package Contents: 1 * Timer Lock Includes only the above package contents; other products are not included. Note: Light and different monitors may cause the color of the product in the picture to be slightly different from the actual product. The allowable measurement error is +/- 1-3 cm.