... and ask them to open the lock remotely, of course, you can also open the lock by other mobile phones, tablet ... wear resistance and higher coating bond;International standard five-tongue lock cylinder, pickproof, anti-pull, besides, it can trigger ... alarm in abnormal condition;Technical Parameter Wireless StandardZigBee HAWorking VoltageDC3.5-6.5V, 4 × AAA alkaline batteriesBattery LifeCan be normally ...