Does the 4G smart doorbell have a lock-opening function?
Answer: With a key unlocking function
Core Unlocking Highlights
One-Click Remote Unlocking: Open the door directly via the mobile APP, no need to run downstairs or ask someone to bring the key.
Supports Multiple Unlocking Methods: Remote unlocking + temporary password unlocking + card swiping unlocking + local button unlocking.
Visitor Linkage Unlocking: Someone rings the bell → video call on mobile phone to confirm → unlock directly, safe and convenient.
