99 hours timing: Free setting of unlocking time, up to 99 hours and 59 minutes after the timing is finished, the lock ring will open automatically. Metal body: The lock body is made of high quality metal, sharp edges and smooth surfaces, improved textured metal lock. Durability and safety. Easy to use: samll LCD with white backlight, display 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 to 500 hours when fully charged. Wide use: Unlock addictive items such as cigarettes, drugs, mobile phones or snacks. Suitable for kitchens, gyms, schools. Battery capacity: 3.7V/200mah Standby time: More than 500 hours Material: metal Color: Silver Package contents: 1 x Time lock Only the above package contents, other products are not included. Note: Light and different screens may cause the color of the item in the picture a little different from the real thing. The permissible measurement error is +/- 1-3 cm. Our aftermarket team consists of experienced, professional and responsible staff. They will do their best to solve your problems and let you feel our sincerity and care. Buying our products means choosing peace of mind and peace of mind.