Features: * Brand new, high quality. *: Heavy-duty metal body with smooth edges, splash-proof, safe for outdoor use. * LCD display: with white backlight, easy to read. * Unique design: built-in smart chip and digital timer switch, automatic unlocking, no key required. * When the time countdown is up, it will sound an annoying alarm to remind you whether to reset it. * USB rechargeable, standby time is over 500 hours. * Once the time is up, the padlock will automatically unlock. * Very suitable for correcting those delayed patients who lack self-control. Specifications: Product Name: Timing Padlock Material: Metal Maximum time: 999 hours, 59 minutes, 59 seconds Color: As shown in the picture Size: 79*46mm Package Content: 1*Timing Padlock Note: 1. The actual color of the product may be slightly different from the picture shown on the website, which is caused by many factors such as monitor brightness and light brightness. 2. The data may deviate slightly due to manual measurement. Thank you for your understanding!