The SwitchBot Smart Lock Pro is a revolutionary keyless lock that offers enhanced security and convenience for your door. Designed with a durable aluminum casing, it combines sleek aesthetics with user-friendly installation. One of its features is the ability to upgrade existing locks, maintaining your original hardware while being enhanced with smart technology. Dimensions: 120 x 59 x 83.9 mm. Weight: 435 grams. Battery Life: 4 AA batteries (1.5 V, 2900 mAh) provide 6-9 months of usage. Power Options: It can be powered by lithium batteries for extended lifespan. The lock communicates via Bluetooth Low Energy (BLE), allowing control through the SwitchBot app up to 120 meters away. It features additional functionalities such as a one-touch locking button, temperature sensor, and auto-locking mode for improved security. It supports various unlocking methods, such as fingerprint unlocking, password, NFC unlocking, remote unlocking, and voice commands. This flexibility ensures multiple ways to access your home with ease. It integrates seamlessly with popular smart home systems, enhancing your smart home experience while ensuring security and convenience at the same time.