1Remote Control Security Lock: The biggest feature is the lockless design. The opening and closing of the lock is completely realized by remote control. There is no keyhole. 2Multiple Unlock Ways: Smart door lock with multiple opening methods of wireless remote control unlocking, remote APP unlocking, indoor touch unlocking. 3Low Power Design: Keyless electronic door lock adopts low power and energy saving design, low consumption, strong anti interference capability. 4High Quality Material: Concealed electronic door lock is made of high quality ABS and stainless steel material, sturdy and durable, have a long service time. 5Easy Installation: Easy to install, smart door lock suitable for all types of doors, no need for extra wiring, convenient for using, save your time and energy. Item Type: SmartDoorLockMaterial: ABS+stainless steelModel:WF-011ABattery: Lock with 4 AA batteries (without batteries)Single remote control 1 CR2032 button battery 50mah (built in battery)Remote Control Quantity Supported:Up to 20Frequency:433.92MHz(50KHz)Communication Mode:433.92MHz(50KHz)+WiFiAPP: For Smart LifeRemote Control Range: 15m inside, 0.3-1m outsideTransmission Mode: Each frequency conversion signal, to prevent replicationUnlocking Method: Indoor touch unlocking, remote control unlocking, remote APP unlocking 1 xSmartDoorLock1 xLocking Box1 xLock Catch1 x Fixed Plate4 x Remote Control17 x Screw11 xSwelling Screw11 x WiFi Gateway1 xManual