Whatever you believe, animals are not hard-wired to feel regret, rage or even fear in the case of dying.
You may not have celiac disease, but you may experience the reactions of one who is allergic to the presence of gluten in the foods you eat.Likewise, you are not necessarily hard-wired at birth for allergies and/or sensitivities.
Both models are available in 120- and 240-volt versions and usually need to be hard-wired with a dedicated circuit, which can pose a problem for someone who doesn't know how to work with electricity.
Wireless and hard-wired versions of this type of recorder are available on the market.
Things haven't changed that much today in terms of how guys are hard-wired.