1Fast Identification: Integrated 3D fingerprint identification, semiconductor fingerprint identification is faster and more accurate than optical fingerprint identification. 2Unlocking Method: The electronic door lock has two unlocking methods, fingerprint and key, with a capacity of 50 fingerprints, enough for you and your family to use. 3Hidden Keyhole: Keyless entry door handle has a rounded appearance, a hidden lock cylinder, zinc alloy material, easy to operate, scratch resistant and rust resistant. 4High Quality Material: The contact surface of the smart door lock is made of insulating ABS, which is environmentally friendly, flame retardant, and anti static. 5USB Port: The smart door lock handle is also designed with a USB emergency power supply port, which can be charged for battery (Not Included) in case the battery runs out.