1?��Using semiconductor cable sensor, easy and fast unlocking, semiconductor fingerprint recognition technology, more sensitive and safer. 2?��Five ways to open the door: fingerprint, password, swiping card, Bluetooth APP, mechanical key. 3?��Support for Amazon voice control (this feature requires customers to purchase a gateway to use it). 4?��Virtual password designed, when using a password to unlock, you can add multiple wrong passwords before/after entering the correct password, and press # to confirm the lock. (The anti?peep function can enter up to 16 digits.) 5?��You can check the unlock record through the APP, and understand the use of the door lock in time. 6?��Support intelligent voice navigation, human?computer interaction, and humanized operation. 7?��When you forget to replace the battery and cannot open the door, the USB emergency power supply can help you. 8?��Prevent others from peeking at the password, self?check at startup, intelligent identification, quick selection, such as fingerprint + password or credit card + password, etc. 9?��The door lock module is waterproof, moisture?proof and mildew?proof. Through high and low temperature tests, it is resistant to vibration, aging, etc., and adapts to harsh environments.