True Keyless Entry:- Enter hassle free with multiple unlocking options. Inbuilt Door Lock. This is a smart lock with high cost performance and supports Mobile app. Fingerprint unlocking, password unlocking, card unlocking, key unlocking and mobile phone remote unlocking can be realized. It is powered by rechargeable lithium battery. Remote Unlock:-Wi-Fi Enabled door lock for remote unlocking using app from anywhere. When someone presses the bell button you will get notification in mobile you can click lock icon in app to unlock. Inbuilt Wi-Fi no need of separate gateway. Unlocking options:-This lock, fingerprint unlocking, magnetic floor unlocking, magnetic card unlocking, mobile phone unlocking, emergency key unlocking, and other standard corrections. Okos Smart can be connected to manage your smart lock. It works using the Okos Smart App to control lock remotely. You can also creat OTP code from the app to give to guests for 1 time access to the lock. Suitable for a variety of application scenarios: Home/Office/Bedroom/Airbnb/Apartment/Hotel. The OKOS Smart Door Lock Series 3 combines advanced security features with convenience. Enjoy multiple methods of access, including biometric (fingerprint), pincode, RF card, OTP, mechanical keys, and app-enabled access.