ZeroPlus DU40 NH+ AS Earplugs

ZeroPlus DU40 NH+ AS Earplugs, universal hearing protection earplugs, are designed for impulse noise environment. They can highly identify environmental sound, distinguish sound signals, and instantly defend against impulse and Instantaneous noise, giving a good hearing protection. It includeds 2 programs. Natural hearing+Noise reduction & Auditory strengthen +Noise reduction. You can adjust according to ambient by switch the button.

DU40 electronic earplugs use DSP digital chips, hypersensitive microphone and unique wide-dynamic compression signal processor to provide high fidelity and flexibility. They improve language identification under noisy environment.