Razor" ultra-thin rubberized cups
Two Omni Directional Microphones
Provides sound Activated protection over 89 dB at 0.02 reaction time
Noise reduction rating of 23dB
Operates on 2 'AAA' batteries- included
NOTE:Kindly refer to the user manual provided as a PDF manual in the product description section
"Razor" Ultra-Thin Rubberized Cups
Two Omni Directional Speakers
Provides Sound Activated Protection over 89 dB @ 0.02 Reaction Time
Noise Reduction Rating of 23dB
Operates on 2 'AAA' batteries- included