495
Location tracking of phones is out of control. Here’s how to fight back.
(arstechnica.com)
This is a most excellent place for technology news and articles.
Just that the cheap ones suck. I got a two-pack from Walmart and the first one I used started falling apart in weeks.
I'd get one handmade off Etsy. They're a little pricier, but the less expensive ones are garbage.