This is a high-quality door lock cylinder that offers advanced security for your home or office. It is a fingerprint electronic lock core that can be easily controlled through an app on your smartphone. The lock is designed to provide maximum protection against unauthorized access, making it ideal for use on doors and windows. With its easy-to-install design, this lock is perfect for DIY enthusiasts who want to improve the security of their home or office. It features a durable construction that is built to last and a sleek design that complements any door or window. Whether you're looking to improve the security of your home or simply want to add a modern touch to your doors and windows, this lock is an excellent choice.