Check the listing for details. Keyless Biometric Fingerprint Electronic Smart Door Lock. Color: Silver, Condition: New. Listed at 99.99 USD. About this itemSupports fingerprint unlocking, touch screen digital password unlocking, APP unlocking, key unlocking, IC card unlocking and other multiple unlocking methods, always allowing you to have a favorite unlocking method. (For security reasons, if the wrong password is entered, it will be locked automatically, please wait patiently to unlock it)Home interior door (lets you have your own private space), office door (protect your office data), entry door lock (allows you to open the door quickly without worrying about not having a key), hotel apartment door (unified management, so you don't need to carry so many keys).You can check the door lock status anytime and anywhere, and you can share the lock with your family by sending an electronic key to generate a permanent, one-time or custom password, making it easier for children, friends or other people who need to enter.It only needs 4 AA batteries, which can provide 8000 times of door opening (about 9 months). Don't be afraid of power failure, the keyhole can also be used to open the door, or use the USB port for emergency charging.only need a Phillips screwdriver, operate according to the instructions in the manual, the existing door lock can be replaced within a few minutes, compatible with standard wooden doors, left-handed doors, right-handed doors, please note that L/R side doors have different installations method.