Long battery life and USB charging: Powered by standard AA batteries with intelligent power-saving technology, the lock provides up to one year of operation; in emergencies, a simple USB connection provides temporary power to unlock the door.;Multiple door opening methods: Offers five secure access options – fingerprint, password, IC card, mobile app, and physical key – ensuring flexibility for families, guests, or office staff while maintaining high security standards.;Tuya APP control: Synchronize with the Tuya Smart app via Wi-Fi to remotely control access, generate temporary codes, and review entry history, making it ideal for rental properties, smart homes, or remote management.;Biometric smart door lock: Advanced fingerprint sensor ensures fast, accurate identification with minimal false rejection, providing a secure, keyless experience tailored for individual users.;Easy installation: Compatible with most wood and metal doors from 35-100 mm thick, this lock is designed for quick DIY installation without complex wiring or modifications, saving time and cost.;This Wi-Fi-enabled biometric door lock redefines home and office security with intelligent access and real-time remote control. With robust construction and environmental resistance, it operates flawlessly in both hot and cold climates. The intuitive interface and voice-guided setup make user management simple. Whether securing a residential or commercial space, this smart lock delivers reliable, scalable access control with minimal maintenance and maximum convenience. We are well aware of the importance of customer service to our customers, which is why we strive to provide the most thoughtful and prompt service. From order to delivery and handling of customer service issues, we follow the entire process to ensure that your rights and interests are protected in the best possible way.