Keyless Entry Keypad Door Lock: Create up to 20 unique access codes for family and friends, plus temporary codes for guests. Included 2 physical keys (duplicable) for emergencies. Please Check Door Size Before Purchase: Before ordering, please make sure your door’s thickness, hole size, and spacing match the lock’s dimensions shown in the product images to ensure a proper fit. 5-Minute Easy Installation: Replace your existing door handle, knob, or deadbolt using only a screwdriver. No extra drilling required. Ideal for front doors and interior doors, with a reversible handle for left- or right-handed doors. Backlit Keypad Door Lock: Features an upgraded backlit keypad for night use, low-battery alerts, silent mode, and vacation mode. Water-resistant design. Powered by 4 AA batteries (not included) with up to 1-year battery life. Smart Keyless Locking Features: Enable auto-lock from 5–99 seconds or lock instantly with one-touch keypad control by pressing any number for 2 seconds. Satisfaction Service: NICE DIGI door lock offers reliable home security and everyday convenience. Enjoy a 30-day money-back guarantee, 2-year product coverage, and lifetime after-sales support for added peace of mind., Manufacturer: NICE DIGI