eufy Security Smart Lock C220, Fingerprint Keyless Entry Door Lock, Built-in Wi-Fi, App Remote Control, Front Door Smart Lock Deadbolt, 8Months Battery, Reliable Power, IP53 Waterproof, BHMA 3, Nickle, Deadbolts [5 Ways to Unlock] Enjoy versatile access options, including fingerprint recognition (less than 0., 3s), the eufy Security app, keypad, physical key, or voice commands via Alexa/Google Assistant. How many passcodes and fingerprints can the eufy Security Smart Lock C220 store? Up to 50 fingerprints and 100 different passcodes. How long does the battery last?How to unlock Wi-Fi Smart Lock when the battery dies? Roughly 8 months depending on usage (10 times unlock through keypad or app). You'll get a notification when the battery is low. If the battery dies, you can power it up via the... Control from Anywhere: With built-in Wi-Fi, manage your smart lock remotely via the eufy Security app—no bridge required. eufy Smart Lock C220 Fingerprint Easy Installation & Excellent Customer Service: Compatible with most standard US&CA doors, the lock installs in 15 minutes without drilling. Access management, real-time notifications, and event history are all at your fingertips. eufy Security Smart Lock C220, Fingerprint Keyless Entry Door Lock, Built-in Wi-Fi, App Remote Control, Front Door Smart Lock Deadbolt, 8Months Battery, Reliable Power, IP53 Waterproof, BHMA Certified, Nickel eufy Smart Lock C220 with Door Lever, Fingerprint Keyless Entry Door Lock, Built-in Wi-Fi, App Remote Control, Front Door Smart Lock Deadbolt, 8 Months Battery, Reliable Power, IP53 Waterproof, BHMA Certified Self-Learning AI: The fingerprint recognition feature becomes more accurate with each use, eliminating the need for repeated attempts and ensuring quick access every time. 8-Month Battery Life: Powered by 8 AA batteries, the Smart Lock C220 offers up to 8 months of reliable use, providing convenience and peace of mind.