“Electronic sound amplification earmuff with 2 independent high frequency directional microphones.”
“From the maximum attenuation available in an earmuff to economical designs, we set the standard for noise blocking and hearing protection.”
“Alas, the earmuff could not maintain its cachet.”
earmuffs
Objects designed to cover a person's ears for protection against cold or noise. They consist of a thermoplastic or metal head-band, that fits over the top of the head, and a pad at each end, to cover the external ears.