MHCOZY WiFi Wireless Smart Switch Relay Module for Smart Home 5V 5V/12V,Ba applied to access control, turn on PC, garage door (5v): Amazon.com: Tools & Home Improvement
eMylo Remote Control Switch DC 12V Wireless Momentary Switch 1 Channel Wireless Relay Transmitter with Receiver for Home Use - - Amazon.com
Wi-Fi Wireless Relay Card 5 Channel with DAEnetIP3 - TCP/IP, HTTP API, RTC - Denkovi A E LTD
Smart RF Relay Switch eMylo Wireless Remote Control Switch DC 12V RF Receiver 433Mhz Relay Module Home Automation with Two Transmitters One 1-Channel 1Pack: Amazon.com: Tools & Home Improvement