Access options Supports fingerprint recognition, password with virtual password function, and RFID card for multiple secure access options. TTLock APP compatibility TTLock APP works with the Tuya app and lets you manage fingerprints, set temporary passwords, and check door opening records. Power and battery Powered by 4 x AAA batteries (not included) and has a charging port for emergency power outages. Stay Open function Stay open lets you press down the door handle to open without additional checks. Use scenarios - Home use: families or roommates can unlock with fingerprint, a code, or an RFID card, with the option to issue temporary codes for guests. - Short-term rental: easily provide temporary passwords to guests and revoke them after stay, while keeping a record of door activity. - Small office or workspace: multiple access methods support secure, auditable entry for employees and visitors. Notes All key functions are designed for convenient, secure access management and activity tracking within the TTLock and Tuya ecosystem. Battery operation and emergency charging ensure access during power issues.