Smart Time Lock with LCD Display, Multifunction Electronic Timer for Travel, Waterproof USB Rechargeable, Built-in Lithium Battery. Features a clear screen and 3 small buttons to set time in hours or minutes, with a maximum setting of 99 hours and 59 minutes. USB charging provides long-lasting operation. Once locked, the device cannot be opened manually; ensure time is set appropriately. Lightweight padlock design ideal for airport and travel security, allowing you to secure personal items and protect privacy. How to Reset the Timer Lock: 1. Press the center of the LCD screen to remove the protective film. Locate the reset hole under the screw on the left side of the screen. 2. Use a metal pin or clip and insert it into the hole to initiate reset. 3. When a "Bi" sound is heard (in sound mode), the LCD will display properly, indicating the timer has been reset. 4. Reapply the protective film after reset. Weight: 30g Color: Black Material: ABS Package Contents: 1 x Time Lock Note: Light and display differences may cause slight color variation between the image and actual item. Measurement error allowed within +/- 1-3 cm.