1. App Remote Control, The Zigbee Optical Switch Module Can Be Controlled Anytime And Anywhere Through The Smart Life & Tuya Smart App On Your Mobile Phone/Tablet. 2. Hands-Free Voice Control, The Light Switch Module Can Also Connect Your Alexa And 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) 4. 2-Way Control Function, A Set Of 2 Channels, You Can Use 2 Switches To Control One Light, Can Be Connected To 4 Light Bulbs,Which Is More Convenient For Daily Use, Especially The Stair Lights In Your Home. 5. Compatible With The Latest Zigbee 3.0 Protocol, It Has Better Rendering Effect In Weak Wifi Signal Environment. Even If Fails, 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. With Timing, Scheduling And Countdown Functions, You Can Make Your Own Schedule According To Your Personal Needs, And Set The Timer And Countdown To Maximize Your Smart Diy Life. With The Family Sharing Function, You Can Share The Switch With Your Family With Limited Permissions And Create A Smart Home With Your Family. Wiring Method: Zero Live Wire Rated Voltage Range: AC100-240V System Support: Alexa Switch Type: Push Button Switch Mode: One Open And Two Controls Control Method: Single Control Once Opened Tips:Zigbee Models Need To Be Used With A Zigbee Gateway(Not Include Gateway) Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use. Colour:As Shown Material:ABS Package Contents: 1 * Tuya Smart Switch 1 * English Instruction Manual 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.