I bought a set of the 3M/Peltor TEP100 electronic plugs this spring, as summertime in central Iowa can be brutal (temps and RH in the upper nineties). I'd have given these a close look if they had been available then. However, I've not regretted getting the Peltors. The recharging/carrying case is still on the original set of batteries and the NRR is entirely up to which tips you use. FWIW, I paid $265 on sale for mine.