Among my other cheap ear muffs from Amazon, this one I like the most ... https://smile.amazon.com/GLORYFIRE-Electronic-Shooting-Amplification-Electric/dp/B0823WSLXV/ref=sr_1_9?crid=1HUT46RHADYIH&dchild=1&keywords=electric+ear+protection+shooting&qid=1614272203&sprefix=electric+ear%2Caps%2C165&sr=8-9

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I've used it in an indoor range with .22, .380, .9, .45, .223, .556, and shotguns. Works well to cancel noise and you can still hear during conversations. I may soon upgrade to a Walker's Razor or a Howard Leight.