HIGHLIGHT[BLE Smart Cylinder Lock ]---Keyless clever cylinder.[KEYLESS SMART CYLINDER] ---- Smart unlocking, multiple ways, safe and convenient, with many functions.[4 Ways to unlock] ---- Fingerprint Unlock/IC Card Unlock/Tuya APP Unlock/Key Unlock.[Replacement/Installation] ---No breaking the door or change the door physique Simply use a hex screwdriver to install in 10 minutes.Adjustable size cylinder lock, 99% of global doors to compliance; smooth replacement of present lock cylinder.[Mobile Managment, review anytime anywhere] -- Smart Control/Family Management/Unlock Record.[Fingerprint/Battery] --- Fast recognition speed, energy saving.[Tuya BLE Gateway ] ---- Remote free up for fast access.Tuya App remote unlocking: Tuya BLE hub is required. After this Smart lock isconnected to a BLE gateway, you could possibly free up it remotely anytime and anywhere.SPECIFICATION--Product type :KEYLESS SMART CYLINDER--Suitable Door Type:Steel Door,Wooden Door,Brass Door,Stainless Stell Door Max. Power Source:CR123A (Alkaline)--Unlock Method:Fingerprint + App + Key+IC Card--Charge Interface:Type-C Charging Port