Wireless light switch

Please develop a wireless light switch that does not require a neutral. I would rather have smart switches than smart bulbs.

There’s an item on the wishlist for a wired smart switch but you would like a wireless one?

I don’t know if that is physically possible, unless the “smart” circuitry were battery powered.

Edit: Looks as if some of these exist but they drain a little power vampirically and use Z-Wave or another low power tech to reach a powered hub. They also don’t work well with LED bulbs?