Smart plugs with WiFi connectivity. Functionality has been confirmed. These will be sent as a set of 4. There are no included instructions. Please refer to the following website and use the "AP Mode Setup" for the manual: https://ja.manuals.plus/teckin/sp20-smart-wifi-plug-manual ・Brand: TECKIN ・Product Name: Wifi Smart Plug ・Model Number: SP11 ・Input Current: 12A ・Input Voltage: 125V ・Frequency: 50/60Hz ・Maximum Output: Up to 1500W Please understand that these are used items before purchasing.