My kids got me the cheap set of the electronic Allen's from walmart and they work okay. I still use the lime green Peltor plugs under the electronic muffs when I'm alone.
Edit: I have very damaged hearing and have had my eardrums replaced so there's that.
I had a cool set of Bluetooth Peltors when I was the chauffeur with my old FD right before I retired. Those things were nice. I could hear the radio calls and my guys talking in the back but the siren and Federal Q were knocked down from a full scream to background noise.