Digital timer lock for countdown and countup functions with LCD screen 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.<br> Metal Body: The Lock body is made of high quality metal,Sharp edges and smooth surfaces, enhanced textured metal lockDurability and Security.<br> 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.<br> Super Standby Time: Universal USB -USB rechargeable, Max Standby Time can Reach Up 500hours Once Full Charge.<br> Widely Use: Lock up addictive objects such as cigarettes, drugs, cell phones or snacks. Suitable for kitchens, gyms, schools.<br> Battery Capacity: 37V/200mah<br> Standby time: Greater than 500 hours<br> Material:metal<br> colour:Black<br> Package Contents:<br> 1 x Time lock<br> Only the above package content, other products are not included.<br> 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.