1. Made of premium zinc alloy construction, this smart door lock is sturdy, anti-pry and durable, equipped with reversible handle to fit both left and right doors perfectly. 2. Offers 6 flexible unlocking ways including fingerprint, password, IC card, mechanical key, Compatible for Tuya APP and one-time temporary password, meeting daily and guest access needs effortlessly. 3. Supports 2.4G WiFi remote control with no gateway required, featuring virtual password anti-leak design and storage for 100 fingerprints, 100 passwords and 100 access cards for large user management. 4. Built with 8 multi-language voice prompts covering global mainstream languages, paired with USB emergency power supply and long-lasting AA battery power for stable all-round use. 5. Compatible with 28-50mm thick steel, wooden, brass and stainless steel doors with multiple optional mortise sizes, easy drilling installation and CE/FCC certified for reliable home security., Weight: 0.1102 pounds, Manufacturer: QINGLUSHANGMAO