Welcome to the major wholesalers, you can contact me to discuss the detailed price. tuya APP link video Note before order This is a WiFi-only curtain switch that can be linked with a manual switch for control, but not for wireless RF remotes. Please do not buy additional RF remotes to add, they are not compatible. APP Name: Tuya App or Smart Life App Free Name: Smart Life, Tuya Support : Android and IOS NEW WiFi Smart Curtain Blind Switch Module Make your roller shutter smart After you install this module, your wall manual switch still works, it can open , pause, or close the shutter, and also it becomes smart. 1. Mobile phone remote control open or close 2. You can set timer schedule for when to open or close your window or roller shutter 3. Voice Control with Google Home, Amazon Alexa Hands free- Voice Control Voice Control with Google Assistant, Amazon Alexa Set Timer Schedule for your curtain Set timer on App for when to open, when to close your curtain, it will open or close automatically. Remote control with your mobile anywhere even you are not at home - Group Function and Device Sharing You can create group in the App to manage all the blinds in your house and share the device to all your family members. 2 Wiring diagram according to your need, to connect with your manual switch or don't need a manual switch - If you need to connect with your manual switch, please refer to below wiring diagram . - To protect the motor, before using App to control the shutter, please keep the wall manual switch at 'STOP' position. - If you need any help for how to connect the module, please be free to contact with seller. Specification Input voltage: AC 85-250V Load power: 1000W/channel Wireless Standard: WiFi 2.4GHz b/g/n+Bluetooth Working temperature: -20~70 Working humidity: 80% Material: flame retardant ABS Size: 46*46*19mm