5 Ways to Unlock: Open your smart lock via the eufy Security app, using the keypad or physical key, from Apple Watch, or use your voice with Alexa/Google Voice Assistant. Integrated Smart Home: If you have a eufy doorbell, you can add your smart lock to your routines and control devices together within the eufy Security app. Security and Durability: BHMA Certified after being locked and unlocked more than 100,000 times. Send an alarm triggered by a usual attempt to open your door lock. Control from Anywhere with Built-in Wi-Fi: No bridge required, you can control your smart lock from anywhere via the eufy Security app. Easy setup. IPX3 Water Resistance Wired Touchscreen Keypad