Kaadas K9 Push Pull Smart Lock Fingerprint Touchpad PIN Code Bluetooth Auto-Locking and Unlocking – Fully automatic electronic mortise to unlock the locking mechanism when a valid key is entered. Also, auto-locks after closing the door. Passage Mode – You can configure this smart door lock to keep the door unlocked when having people over or keeping a space open at certain times. Voice Guide – A user-friendly voice guide to help you through the programming process and day to day operations. Up to 8,000 Times Access – Thanks to Bluetooth 4.0’s ultra-low power consumption technology, this smart door lock can be powered by AA batteries with more than 10 months of battery life through regular use. Low battery alerts on the lock and smartphone app. Semiconductor Fingerprint Identification – Fast and accurate fingerprint identification in under a second. Built-in Anti-theft Features – 10 failed attempts to unlock the door will deactivate the keypad for 5 minutes. Also, you can turn on the intrusion warning alarm for added security. Micro-USB For Emergency Power & Mechanical Key – Use an external battery to activate your smart lock even when the batteries are dead. Backup mechanical key for an emergency override. Easy Locking from both inside and outside – Just one simple and intuitive push/pull door opening action. Kid-safe handle option – Enable a safe handle option to prevent kids from opening the door to strangers.