CE EN352-1 & EN352-4 approvalOn / Off volume control. Sensitive microphones. Carry on a normal conversation in a variety of work situations, despite a noisy background-great for fluctuating noise levels. Blocks out higher frequency, harmful noise, but allows passage of harmless sounds, especially those in speech frequency range. Sudden noise impulses at harmful levels are immediately attenuated. Enable amplification of weak warning signals, speech or important sounds.
CE EN352-1 & EN352-4 approval
On / Off volume control. Sensitive microphones. Carry on a normal con