I buy the cheapy shower head and then pull the rubber restrictor out with needle nose pliers. Best shower stream in my opinion.
All the RESTRICTOR shower heads and faucets have a thin metal round plate in them with roughly a 3-4MM hole in the center of it. You simply on screw the head with a channel lock and take the plate out.
As far as the faucets go, just remove the plastic inserts installed in the faucet head. Same goes for the shower head. Don’t know about phone batteries. Was forced into buying an APPLE iPhone!!! No thanks to the bride pushing me to get one!
Yeah, I’ve modified a shower head restrictor by opening it up. It seemed to function as a washer too, so I just carved it out a bit. :-)