Product Application: Suitable for factory, farm, office, instrument, ventilation, pump, motor, remote control garage door, house door, lamp, curtains, gate, and other remote control devices. Tuya Smart Inching/Self-Locking WiFi Wireless Smart Home Switch – This product is a wireless switch that supports inching and self-locking modes. Users can add the device to the Smart Life app to remotely control connected devices. In self-locking mode, users can turn connected devices on or off instantly. In inching mode, users can choose between two wiring methods and set the inching time via the app. WiFi control mode – no programming required. Simply download the app, connect to WiFi, and control the device remotely via the cloud. RF mode – control the receiver using a 433MHz RF remote controller. High power switch with maximum load of 4000W / 30A. Tuya WiFi Smart Switch Receiver Voltage: AC 85-250V, 50/60Hz Max Current: 4000W / 30A WiFi Frequency: 2.4GHz, IEEE 802.11 b/g/n Remote Control Frequency: 433MHz Remote control does not include batteries Color: White Material: Plastic Package Contents: 1 x Receiver 1 x Remote Control (without 2 x CR2032 batteries) Note: Only the items listed above are included. Other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.