The Aqara Smart Lock D200i in black provides a versatile approach to home security by combining a motorized multi-point locking system with several ways to enter your home. You can unlock the door in less than a second using 3D structured light face recognition, or choose from alternatives like a fingerprint scanner, PIN code, NFC, the mobile app, or a traditional mechanical key. For guests or service providers, the system allows you to generate temporary passwords, ensuring you maintain control over who enters your space. Integrated into the lock is a 1080p HD camera with a 160° wide-angle lens and night vision, which works alongside AI person and package detection to keep you informed of activity at your doorstep. The built-in microphone and speaker enable two-way audio, letting you speak with visitors directly through the device. To keep your recordings safe, the lock supports both cloud storage and a local microSD slot for cards up to 256GB. Measuring 480 x 85 x 75 mm and weighing about 6.0 kg, the unit is powered by a rechargeable battery that lasts up to four months, with a USB-C port available for emergency power. It connects via Wi-Fi and Bluetooth, offering compatibility with Apple Home Key for users with iOS 15 or later. The system is designed to operate in temperatures ranging from -10°C to +55°C and includes security measures like a tamper alarm and automatic lockout after too many wrong attempts.