Radians 230-EHP is a low-profile electronic sound amplification earmuff. Dual independent microphones pick up and amplify low sound level noises, electronic circuitry protects from dangerous impulse noises of the shooting sports.
Specifications:

Type
Color	Black
NRR	23 dB
Quantity	1 Pair
Style	Over the Head
AFT Circuit
Battery	AAA
Compression Circuit
Material