The optical fingerprint module recognition rate is much higher than the popular scratch fingerprint recognition module on the market.Holds up to 120 identifying fingerprintsThe first three fingerprints are administrative fingerprints, and new fingerprints require administrative approval.Equipped with a stainless steel safety rope that will not rust, you can use the safety rope to secure the safe to your car or bed.Low voltage promptWhen the battery is low, it will ring 3 times each time the safe is opened, and the LED indicator flashes three times to indicate that the voltage is low and encourages the user to replace the battery.Equipped with an extra key, the extra key is not controlled by the electronic door closure system, so you can use an extra key to open the device and replace the battery when there is no electricity.