I have the Walkers $140 in ear. The batteries are a type which i have never used. Basically, you peel a little label off, and they activate. From then on, they work for "80 hours," but there is no saving the battery by turning the device off. They simply go-go-go until they poop out.

One set of batteries lasts a whole weekend of shooting birds, or on the range for me. Next weekend, need new batteries.

I bought a big pack of batteries thru Amazon or Walmart for $20 or so.

The units work fine. Sound quality is pretty crappy, like an old-school walktie-talkie or the like, but you can have normal conversations, and they do suppress the report of gunfire.

"What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as freedom should not be highly rated." Thomas Paine