Feature:1. Fast Identification: Integrated 3D fingerprint identification, semiconductor fingerprint identification is faster and more accurate than optical fingerprint identification.2. Unlocking 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.3. Hidden Keyhole: Keyless entry door handle has a rounded appearance, a hidden lock cylinder, zinc alloy material, easy to operate, scratch resistant and rust resistant.4. High Quality Material: The contact surface of the smart door lock is made of insulating ABS, which is environmentally friendly, flame retardant, and anti static.5. USB 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.Specification:Item Type: Smart Door HandleMaterial: Zinc Alloy + ABSBattery Parameters: 4pcs AAA Batteries (Not Included)Unlocking Method: Fingerprint, KeyNumber of Fingerprints: 50Applicable Door Thickness: Approx. 30-60mm/1.18-2.36inUnlock Time: 1.5sOperating Temperature Range: -20-70Scope of Application: Home door, apartment, homestay, hotel, rental house, office, etc..Package List:1 x Inside Door Handle1 x Outside Door Handle2 x Key4 x Accessories1 x Lock Tongue1 x Stoppers4 x Screw1 x ManualNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.