1. Super Standby Time: Universal USB rechargeable, maximum standby time can reach up to 500 hours when fully charged. 2. Easy Operation: Small LCD with backlight displays unlock time clearly and softly; 3 small buttons allow easy setting of hours or minutes, user-friendly design. 3. Metal Body: Lock body constructed from metal with sharp edges and enhanced textured finish for improved durability and security. 4. 99-Hour Timer: Unlocking time can be freely set up to 99 hours and 59 minutes. Once timing is complete, the lock ring opens automatically. 5. Promotes Healthy Habits: Helps reduce screen time before bed, encouraging earlier sleep and improved sleep quality. Assists in controlling smoking by limiting usage and gradually increasing intervals between cigarettes to support healthier routines. Product Name: Metal Timer Lock Battery: 3.7V/200mAh Battery (included) Standby Time: More than 500 hours Dimensions: 45 x 78 x 18mm / 1.77 x 3.07 x 0.7 inch Lock Type: Keyed Padlock Color: Black Material: ABS and metal Package Contents: 1 x Time Lock Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual product. Measurement may vary by +/- 1-3 cm.