Unfortunately, even if a company offered this, in today's world the product would likely have a hidden microphone that isn't listed on the featured hardware.
Much like the old physical typewriters had spyware hidden on them without the users knowledge. I would be willing to bet that every keyboard has something similar today.
It's also striking to see how many people believe that they can trust the 'little indicator lights' on their microphone and cameras to actually indicate that their physically cut off from power. Very, very few devices are made in a way that this is true, and I would be hard pressed to believe it even if it was started in a manual unless I physically checked the equipment.
Ultimately, just assume that the entire world can scrutinize everything that happens on or around any electronic device... so everything, all the time.
Much like the old physical typewriters had spyware hidden on them without the users knowledge. I would be willing to bet that every keyboard has something similar today.
It's also striking to see how many people believe that they can trust the 'little indicator lights' on their microphone and cameras to actually indicate that their physically cut off from power. Very, very few devices are made in a way that this is true, and I would be hard pressed to believe it even if it was started in a manual unless I physically checked the equipment.
Ultimately, just assume that the entire world can scrutinize everything that happens on or around any electronic device... so everything, all the time.