Charge for one hour, then you can use it for a whole year, no need to charge all the time, high practicality. Low battery reminder, the red light flashes quickly, charge in time to avoid sudden power failure. The smart chip has its own learning function. Each time it is unlocked, it automatically learns through fingerprint assembly and image recognition. The algorithm continues to improve the success rate, and the more you use it, the more sensitive it becomes. The semiconductor fingerprint sensor, one key to unlock, time to unlocking is less than 0.5s, the recognition rate is more than 99.99, and the number of stored fingerprints is 20. The high-strength zinc alloy material, anti- riot and anti-pry, the lock body and the lock beam are made of alloy, which is strong and durable. The operation is simple and complete in two steps. Press and hold the fingerprint head until the blue light is always on, and enter 5 consecutive fingerprints to complete, no need to wait for mobile phone or APP to be processed .