99 Hours TimeFree setting of unlocking time, up to 99 hours and 59 minutes. After the timing is completed, the lock ring will automatically open. Super Standby TimeUniversal USB Micro USB rechargeable, the maximum standby time can reach 500 hours once fully charged. Metal BodyThe lock body is made of metal and smooth surfaces, the improved textured metal lock. Durability and security. Ease of UseSmall LCD screen with backlight, displays the unlocking time soft and clear, 3 small buttons to adjust the hours or minutes, easy to operate. Improve Sleep QualityReduce the time spent looking at mobile phones, fall asleep early, improve sleep quality, enhance immunity, and lead a healthy life, Control smoking: limit smoking, reduce the number of cigarettes per day, gradually lengthen the interval, and cultivate healthy living habits Specifications: Product Name: Metal Timer Lock Material: Alloy + Silicone Color: Silver/Black Battery: 3.7V/200mA (included) Standby Time: More than 500 hours Size: (Approx) 45*78*18mm/1.77*3.07*0.7inch Package Included: 1pc x Metal Timer Lock 1pc x Charging Cable 1pc x Chinese and English Manual Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2cm differences due to manual measurement.ladace