That is not a US plug.
I’m 99 44/100% sure it’s US plugs and we have the wrong photo. Checking.
Does it use/cover both plugs in a standard electrical wall unit?
Did we ever find out for sure if it was the US or EU plug? If it’s for an EU plug, I’ll buy one fo shizzle.
Buyer is also positive it’s a US plug. Amazon has the same photo. Some of the Q&A ask and responses say it’s a US plug.
https://www.amazon.com/Tonha-Portable-Electric-Adjustable-Thermostat/dp/B07JC8NLNZ