Note: The relay controller is WiFi +RF433MHz, the wall switch is RF433MHz solely mini round button change itself can not control lighting fixtures on off It must paintings with WiFi +RF433MHz receiver together Features: -Easy to set up & Easy to apply The product is acceptable for AC 100-240V, and the wiring and matching are extremely simple -High Quality Chip, Support High Power High-quality chips, support more electrical appliances, more utilization scenarios, and more secure to use -RF433MHz Wireless Remote Control Control lights, followers and different electric appliances along with your RF433Mhz distant with no network Smarter than ordinary control, Simpler and suitable for the aged -Long Remote Control Distance The sign can go through the wall, and the remote control distance can reach 70 meters -Supports Multiple Remotes One receiver supports about 10 distant controllers The system can then be grew to become on and rancid in multiple locations for comfort and power financial savings -Mini RF Remote controller Great small size to put it in your pocket or stick it anywhere (with 3M double sided tape) The handheld remote control contains CR2016 batteries Control mode: Wireless Switch Control or Reomte Control + APP Control + Voice Control Tuya or Smart Life App Remote Control: Remote management lightings or home equipment of your place via Smart Life app from anyplace at anytime Voice control: Fully like minded with Amazon Alexa and Google Home you are studying or operating at the moment, you might voice control the on and off of connected equipment Specification: Controller (Receiver): Input power : AC 100-240V RF Frequency : 433MHz WIFI Frequency : 2 WiFi Standard : IEEE 802 b/g/n Remote storage : 15pcs Size : 41mm*41mm*20 mm Max Current : 10A Shell : Yes Port : L/N Certification : CCC,CE,RoHS Feature : Has WiFi Function Feature2 : Can Work with Tuya,Smart Home Feature3 : Time Function Feature4 : Voice Control by means of Google Home,Amazon Alex