Built-in WiFi, No Hub Needed: Connects directly to 2.4GHz Wi-Fi-no additional gateway purchase needed. Fast pairing and immediate use. Compatible with all mainstream home Wi-Fi networks, Bluetooth distance, eliminating Bluetooth range limitations | App Remote Management: Use the App to unlock or lock remotely, monitor lock status in real time, view history records and real-time entry/exit logs, get instant security alerts right from your phone. Remotely create/share/delete codes and fingerprints, low-battery reminders, stay in control wherever you are | 7 IN 1Unlock & Lock: Control access via KK Home remote App, fingerprints, PIN codes, voice, authorized admin, cards, keys, and auto lock from 10-180s and one touch lock function ensures peace of mind. LED indicators show lock or unlock status at a glance, ideal for families, guests, rentals, and daily use | Seamless Voice Assistant Integration: Works with Alexa and Google Assistant. When your hands are full or you?re busy, simply use voice commands to lock/unlock or check the lock status. Hands-free convenience that fits right into your smart home ecosystem | 0.2s Ultra-Fast Fingerprint: Smart locks for front door features AI self-learning fingerprint technology with 99.8% accuracy-unlocks in just 0.2 seconds. Stores 20+ fingerprints with easy APP management, making it convenient for the family and visitors | Multiple Privacy PIN Code: Supports remote create and delete 100+ codes via the APP-including 4 types of permanent, recurring, scheduled, and unlimited one-time codes. Anti-peep code allows random digits before or after the real code to prevent code theft. Lock disables for 2 mins after 5 wrong attempts | Local Encrypted Storage: All lock data (access logs, user info, passwords/fingerprints) is stored with encryption locally on the lock chip, preventing data leaks at the source. IP65 weatherproof, professional BHMA & ANSI GRADE 3, durable enough for 40+ years | Built for Reliability & Security: Featuring an 8-battery design (batteries not included) that delivers double signal strength, up to 95% more stable connectivity, and 98% longer battery life than standard 4-battery Wi-Fi locks. Includes real-time APP battery alerts, a backup Type-C power port, and a physical key for power-free entry | Easy Installation: Installs in 15 minutes on standard US deadbolts, no drilling required. Fits most standard interior and exterior doors with thicknesses from 1-3/8 to 1-3/4 (35mm-50mm) and door hole diameter1-1/2 or 2-1/8(38mm or 54mm). Includes installation guide + video tutorial-just a screwdriver is needed. No professional help required | 2-Year Warranty & Lifetime U.S. Based Support: Backed by a 24 months full product warranty and lifetime component maintenance. Enjoy U.S.-based phone support (Mon-Fri 9 AM - 5 PM | Sat 7 AM - 3 PM PST) and 24/7 email assistance for worry-free ownership