4. 3-Way Control Function, A Set Of 3Channels, You Can Use 3 Switches To Control One Light, Can Be Connected To 3 Light Bulbs,Which Is More Convenient For Daily Use, Especially The Stair Lights In Your Home. Compatible With The Latest Zigbee 3.0 Protocol, It Has Better Rendering Effect In Weak Wifi Signal Environment. Even If Fails, 1. App Remote Control, The Zigbee Optical Switch Module Can Be Controlled Anytime And Anywhere Through The for Smart Life & for Tuya Smart App On Your Mobile Phone/Tablet. 2. Hands-Free Voice Control, The Light Switch Module Can Also Connect Your for And for Home, Simple Voice Commander To Control The Switch. 3. Mini Size, Easy To Install, The Ultra-Mini Size Body Can Be Easily Hidden Into A Traditional Switch Box, Making Your Home Smart Without Changing The Decoration. Additionally, It Is Simple To Install, Making It A Great Project For Diy Users. (Note: Compatible With Rockers And Touch Switches, Not Compatible With Reset Switches) 5. It Can Work Normally Without Wifi. It Can Be Linked With Other Switch Modules And Electrical Appliances In The Home To Create Different Scenes, Such As Sleep Mode, Work Mode, Dining Mode, Etc., Manufacturer: Akfldms