Product name: Face difference smart door lock Material: Aluminum alloy Power supply: Built-in lithium battery (rechargeable, each charge can be used for more than half a year in normal use) Weight: 4600g Product size: 7.2*7*42(CM) Style: Modern style Applicable door thickness: 40-120MM Origin: China Special functions: keyless, fingerprint, anti-theft APP function: 1. No gateway is required, connect to wifi directly. 2. Remotely unlock through mobile phone APP. 3. Get unlocking records when someone opens the door. 4. Set temporary password/timed password in APP and unlock with one click. Package includes: 1*set of smart locks 1*lock body (24×240mm) 1*user manual Our smart locks come with detailed instructions for use and unlock quickly. The intuitive interface and easy-to-use controls make it easy to manage your smart locks. Enjoy a better user experience and easy navigation. Benefit from advanced security measures, including mortise lock design, deadlock door locks and smart control systems to protect your home. Please allow 1-10mm deviation due to manual measurement. Due to light and screen differences, the color of this item may be slightly different from the pictures.