Quick view Radians Radians 430EHP 430 Electronic Earmuff 27 dB Black $27.01 Radians 430-ehp black and the 430-ehp4u camo are electronic sound amplification earmuffs.One independent microphone picks up and amplifies low sound level noises.They have a compact folding feature for easy storage.When sound levels exceed 85db, the... Compare Add to Cart