FEATURED - Contains a fingerprint reader built into the outward-facing handle, so it will unlock faster - Automatic lock and unlock - Up to 12 months battery life and support on-door charging - Real time monitoring amp; local remote reminder - 7 ways to unlock - Open/close via homekit / mijia app - Language: EN/CN - New interactive light effect when opening the door REQUIREMENT - Only suitable for door thickness 40-120mm - If it has 2 door, the distance between the door min 160mm APP COMPATIBILITY MiHome: YES (Reg:China) VOICE CONTROL - Apple Homekit:YES ( the door lock status will be exposed ) SPECIFICATION - Operating Temperature: -10C - 55C - Product Net Weight: 4.2kg - Working Humidity: 0-93%RH - Product Size: 393.8 * 74.2 * 58.6 mm (panel) - Power Supply: Lithium Battery(7.2V) Type C, Emergency Power Supply (5V) - Wireless Connection: Bluetooth 5.0 - Product Safety: Level B - Cylinder Safety: Level C - Executive Standard: GA 374-2019, GA/T 73-2015(Lock Cylinder),GB 21556-2008 - Environmental Adaptability: Grade Level GA 374-2019 - Door Lock Language: CN/EN