This product is a 4-channel universal WiFi wireless smart switch used for your smart home system to automatically turn on/off household appliances and electronic devices remotely through a mobile app. It can simultaneously connect and control four appliances on the app, and you can independently turn on/off each of the four switches. It also supports timed turning on/off of appliances at designated times and sharing with others so that you can control your smart home with your family. You can also use and Home/Best to voice control household appliances, enjoy smart living, and make your home smarter. Model:KR2204W Iuput:AC90-265V 50/60Hz WiFi:802.11 b/g 2.4GHz APP:Smart Life or Tuya Smart Maxioda:10A*4 Due to different product batches, the appearance , which does not affect the use. Colour:Black Material:Plastic Package Contents: 1 * 4CH Tuya Smart Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.