Features WATERPROOF AND DURABLE: The door lock module is waterproof. After high and low temperature tests, it is shock-resistant, aging-resistant, and adaptable to harsh environments. WIFI REMOTE CONTROL: Support the graffiti function, you can connect to the mobile phone through WiFi, and remotely unlock the lock, which is very convenient. SUPPORT APP CONNECTION: You can view the unlocking records by connecting to the APP, so as to know the usage of unlocking in time and improve family security. INTELLIGENT PREVENT THEFT: Prevent others from peeking at the password, power-on self-test, intelligent identification, quick selection, such as fingerprint password or card password. USB POWER SUPPORT: When you forget to replace the battery and cannot open the door, the USB emergency power supply can help you, solve the problem of battery power exhaustion, and can be a temporary emergency. Specification: Item Type: Smart Door Lock Support Wireless Network Protocol: WIFI 2.4GHz Inner Lock: 4 x AA battery(not included) Features: Password, smart card, fingerprint, key and other unlocking methods, especially app remote unlocking, more convenient, all unlocking methods work with each other without interference Package List:1 x Door Lock Fingerprint Panel1 x Inner Lock1 x Inner Lock Corresponding Accessory1 x User Manual1 x Key Cylinder2 x Key2 x Smart Card Key4 x Long Screw8 x Short Screw1 x Screw Fitting Package List 1 x Door Lock Fingerprint Panel 1 x Inner Lock 1 x Inner Lock Corresponding Accessory 1 x User Manual 1 x Key Cylinder 2 x Key 2 x Smart Card Key 4 x Long Screw 8 x Short Screw 1 x Screw Fitting