Multiple unlocking methods: Choose the method that suits you to unlock the door easily. Easy control via EZVIZ App: Full management of your device through your smartphone. Instant mobile alerts: Get real-time notifications for any activity. Supports child safety lock: Extra protection for your children. Built-in electronic doorbell: Receive visitors easily. Tamper alarm: Instant alerts when the device is tampered with. IP65 weatherproof design. Supports emergency power supply: Continuous operation even during power outages. Low battery warning signal: Instant alerts when the battery needs charging. Smart integration with EZVIZ² cameras: Integrated experience with other EZVIZ devices.