Smart key for heater or air conditioner 40A (Wi-Fi)

Water heater or air conditioner key that withstands 40 amps Voice control: No need to wake up, easily turn on the water heater for a smart life experience. Remote control: You can control the water heater on the app anytime and anywhere outside, and take a hot shower when you return home. Supports voice commands (Amazon Alexa - Google Assistant - Siri) via the Smart Life app