1、3 in 1 Smart Lock: Fingerprint recognition, password and mechanical key 3 unlocking methods. Support garbled unlocking to prevent peeping, suitable for door thickness 30‑65mm. 2、Fast Fingerprint Recognition: Built in latest fingerprint recognition module, fingerprint recognition within 5S, up to 100 fingerprints can be stored. (Only recognize living fingerprints, reject fake fingerprint films.) 3、Low Voltage Alarm: Low power consumption function, when the voltage is lower than 8V, the low voltage prompt will remind you to replace the battery. 4、Emergency Power: If the battery of our smart door lock is low, you can temporarily charge your security lock with a power bank, phone charger, any power source with a Micro USB port. 5、Easy to Use: Make your life safer and more convenient, support up to 100 fingerprints and 100 sets of passwords. Can identify dry and wet fingerprints, suitable for children and the elderly. 1 x Front Handle1 x Rear Handle1 x Lock Tongue1 x D Pinch Plate1 x Buckle Cover2 x Key1 x Square Strip2 x Headless Screw2 x Connecting Tube2 x Front and Rear Panel Lock Screws4 x Self Tapping Screw1 x Battery Cover Replacement Screw1 x Screwdriver1 x Manual Item Type: Smart Door LockMaterial: Zinc AlloyColour: BlackBattery Type: 4 AAA batteries required (not included)Unlocking Method: Fingerprint, password, mechanical keyUnlock Time: 1.5sNumber Of Fingerprints: 100Number Of Passwords: 100 groupsScope Of Application: Ideal for home, office, hotel, apartment, etc.