5 Easy Ways to Unlock: The cutting-edge chip and ultra-thin fingerprint film recognize you in 0.3 Seconds, and unlock your door in 1 second. You can also control your Smart Lock from the eufy Security App, by talking to your Alexa or Google Voice Assistant, or using the keypad or keys.  
 Remote Control from Anywhere: Wherever you are, you can see who's at your front door via doorbell camera and control your lock with the eufy Security app. Get notifications* and easily manage access for every visitor. *Push notifications with thumbnail previews require thumbnail preview images to be temporarily stored in the cloud.  
 One Big Battery Covers Everything: The rechargeable battery perfectly compliments each advanced feature. The generous 10,000 mAh capacity means you don't have to worry about your Smart Lock running out of power.  
 Security and Durability: Protect your privacy and never pay a subscription fee with built-in local storage on Chime (Requires SD Card). BHMA Certified after being locked and unlocked more than 200,000 times. IP65 waterproof, working temperature from -22°F to 158°F (-30°C to 70°C).