Sweet! Tactical Digital Earplugs!
Batteries last for 16 hours and these things really work well. No sweaty ears from muffs - can still hear the birds calling and flying :)
23/30dB reduction depending on which ear cups you use - nearly as good as foam plugs.
I use these and like them a lot.
3M PELTOR Tactical Earplug TEP-100, 1 Kit EA/Case https://www.amazon.com/dp/B00PABOJ0Q/ref=cm_sw_r_cp_api_i_tpllFbR2GFJNR
3M PELTOR TEP-100 Tactical Digital Earplug https://www.amazon.com/dp/B00PABOJ0Q/ref=cm_sw_r_cp_apa_i_NqIMDbXKHYGFD
Do you mean TEP-100?