3-In-1 keyless entry door lock Better for interior door: Bluetooth APP+ Fingerprint(110pcs) unlock less 0.25s +Key. Easy install within 7 minutes Just need a screwdriver, no drilling needed, easier to replace existing old knobs. Suitable for all doors thickness about 1-3/8'' to 2-1/8'' (35 to 55mm) . Adjustable backset from 2-3/8''(60mm) or 2-3/4''(70mm). Share & Remote Control Share E-key with your friends anytime and anywhere, use with Gateway (sold separately), you can remotely lock and unlock the door. Safe & Convenient The biometric door lock is made of high-quality stainless steel, stronger, and more durable. Auto lock+view all unlock record on the App+USB port for the emergency charge, bringing you a safe and convenient life. Customer Service 1-year warranty & provide tech support for installation and use, free return and exchange services for defective items, protect your right, and make sure you enjoy this purchase. Specs: Item Weight ?2.29 pounds Package Dimensions ?7.87 x 7.83 x 3.15 inches Handle Type Knob Style Fingerprint Lock improvement 202 Item Package Quantity 1 Usage Home, Bedrooms, Apartments, Office, Closets Control Method App Batteries Included? No Batteries Required? No

3-In-1 keyless entry door lock Better for interior door: Bluetooth APP+ Fingerprint(110pcs) unlock less 0.25s +Key. Easy install within 7 minutes Just need a screwdriver, no drilling needed, easier to replace existing old knobs. Suitable for all doors thickness about 1-3/8'' to 2-1/8'' (35 to 55mm) . Adjustable backset from 2-3/8''(60mm) or 2-3/4''(70mm). Share & Remote Control Share E-key with your friends anytime and anywhere, use with Gateway (sold separately), you can remotely lock and unlock the door. Safe & Convenient The biometric door lock is made of hig