Sonoff MiniR4 is extreme(ly) small - NotEnoughTech
The smallest smart relay I had in my hands! Sonoff MiniR4 Extreme - YouTube
Amazon.com: Sonoff Wifi Switch, DC5V 12V 24V 32V Wireless Relay Module Smart Home Automation Modules APP Remote Control Timer Switch Voice Control Compatible with Alexa Google Home
Aihasd Sonoff Inching/Self-Locking WiFi Wireless Smart Switch Relay Module DC 5V Smart Home For Apple For Android Control - AliExpress
Sonoff Basic Voltage Free Relay Changeover Modification - My Blog
1 Channel Relay Sonoff Wifi Wireless Smart Switch Relay Module Dc 5v For Smart Home Apple Android App Control Self-lock 433mhz - Relays - AliExpress
SONOFF WiFi Smart Curtain Switch with Power Metering TUV Certified, DUALR3 Dual Relay DIY Curtain, Blinds, Roller Shutter,Two Way Smart Switch,Works with Alexa&Google Assistant(1 Pack) - - Amazon.com
Source Sonoff 4CH Pro R2 Smart Wifi Relay Switch 4 Channel 433 RF Control Ewelink APP Voice Control With Alexa Google home on m.alibaba.com
SmartWise 7V-32V 2-gang smart relay switch (in case), with dry contact and momentary switch, Wi-Fi + RF - eWelink Store
SONOFF Dual – Control module with 2 relay outputs
Sonoff Wifi Switch, USB DC5V Wireless Relay Module Smart Home Automation Modules APP Remote Control Timer Switch Voice Control with Alexa Google Home Access Control System: Amazon.com: Tools & Home Improvement
Sonoff 4CH PRO (R3) WiFi + RF smart relay switch with 4 channels, NO/NC and dry contact support - eWelink Store
WIFI SMART RELAY 4 CHANNELS SONOFF 4CH | ELLICOM - Industrial material automation and installation
Sonoff DUALR3 Lite Smart Light Switch Dual Relay Two Way Switch | eBay
Sonoff DualR3 Dual Relay Two Way Power Metering Smart Switch - Opencircuit