Features 1、Efficient Security: With dual verification using fingerprints and passwords, the smart lock ensures that your door is always secure and reliable. 2、Remote Control: With for Tuya smart WiFi technology, you can remotely control the lock, allowing you to open or close it anytime, anywhere. 3、Convenient Operation: Say goodbye to carrying keys. With this smart lock, you can easily lock and unlock your door, simplifying your daily routine. 4、Reliable and Durable: Constructed with plumbum alloy and tempered glass material, this smart lock ensures long lasting durability and reliability. 5、Easy Installation: With simple installation steps, you can easily install this lock on your own without the need for professional assistance. Specification Item Type: Smart Door Lock Material: Plumbum alloy and tempered glass Product Size: Approx. 25 x 23 x10cm/9.84x9.05x3.93in Battery Type: Lithium battery x4 (Shipped with built in battery) Battery Capacity: 5000 mAh Package List 1 x Lock Tongue2 x Key1 x Buckle Plate 6 x Screw 2 x Accessories1 x Inner Lock 2 x Outer Lock 1 x User Manual 1 x Size Drawing Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.