3 Way Smart Switch by Martin Jerry, 2 Pack, Compatible with Alexa, Smart Home Devices Works with Google Home, 2.4G WiFi…

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Installation: this wifi light switch MUST work with 2.4G wifi router (Not 5G)| Neutral Wire is also necessary (white and capped inside the outlet box). Please send us wiring pictures if you have any installation problems
3 way / 4 way switch: This smart light switch work with non-smart toggle switch rocker switch to build a 3 way / 4 way circuit. Only replace one by this wifi switch. It must be installeded at the live side. If it turn on and off automatically, please swap the wifi switch and the other non-smart switch
Home automation (IOT): smart home devices are compatible with Alexa and works with Google assistant for voice control (Smart Life Skill). Remote light switch via iOS and Android devices (Smart Life App). Schedule, timer switch, Sharing to create a smart home automation system
Specifications: 100-240VAC, 15A(Max), 50/60Hz. This wireless light switch can work in most household electricity environment.
Warranty: Martin Jerry is offering a 30-day, money-back guarantee, 1-year quality warranty for smart home devices on Amazon, like smart plug, Smart Switches, Wall Switches, Smart Bulb, Homekit smart plug
Warning: If the switch keep ON-OFF-ON automatically, it means the wifi switch is installed at the load side. Please swap the wifi swith and the non-smart switch