HARFO Fingerprint Door Lock, Keyless Entry Door Lock with Touchscreen and OLED Display, Keypad Door Lock, Door Lock with Keypad, Door Level, Passcode Door Lock for Office Home (Aged Bronze), ??【Multiple Ways To Unlock】Advanced Keyless Entry Smart Door Lock: Fingerprint + Code + Access Fob + Key+Double Verification(Optional)., ??【Easy to Program】Oled Display + Voice Guide will walk you through the whole process. You can simply use the touchscreen to add or delete user on the device., ??【Advanced 3D Fingerprint】With our 3rd generation fingerprint access technology, the fingerprint sensor ccuracy up to 99.86%. Works perfect for kids and the elder. Unlock the door less than 0.3 seconds., ??【Reversible Door Handle】Door Lock is suitable for both left or right handle door.Just follow the user manual, it is super easy to change the handle to the direction that you need., ??【Door Thickness Range】1 3/8 inch to 2 3/16 inch 35mm-55mm thick. ? This keyless door lock needs 4pcs 1.5V AA dry batteries (No include) . Rechargeable batteries are not recommended, because most rechargeable battery's voltage is 1.2V., ,