99 Hours Timing: Free setting of unlocking time, up to 99 hours and 59 miunutesafter the timing is finished, the lock ring will open automatically.Metal Body: The Lock body is made of metal,Sharp edges and smooth surfaces, enhanced textured metal lockDurability and Security.Easy Operatea: samll LCD with white backlight,display the unlock time soft and clear,3 small buttons to set hours or minutes,easy to use.Super Standby Time: Universal USB -USB rechargeable, Max Standby Time can Reach Up 500hours Once Full Charge.Widely Use: Lock up addictive objects such as cigarettes, drugs, cell phones or snacks. Suitable for kitchens, gyms, schools.Battery Capacity: 37V/200mahStandby time: Greater than 500 hoursMaterial:metalcolour:BlackPackage Contents:1 x Time lockOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.