1. Super Standby Time: Universal USB rechargeable, maximum standby time can reach up to 500 hours after a full charge. 2. Easy Operation: Small LCD with backlight displays the unlock time clearly and softly; 3 small buttons allow easy setting of hours or minutes. 3. Metal Body: The lock body is made of metal with sharp edges and enhanced textured surfaces for improved durability and security. 4. 99-Hour Timer: Unlock time can be freely set up to 99 hours and 59 minutes. After timing completes, the lock ring opens automatically. 5. Promotes Healthy Habits: Helps reduce screen time before bed, encouraging earlier sleep and improved sleep quality. Can assist in controlling smoking by limiting usage and gradually increasing intervals between cigarettes to support healthier routines. Product Name: Metal Timer Lock Battery: 3.7V/200mA Battery (included) Standby Time: More than 500 hours Size: 45 x 78 x 18mm / 1.77 x 3.07 x 0.7 inch Lock Type: Keyed Padlock Color: Black Material: ABS Package Contents: 1 x Time Lock Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3 cm.