Radians Maximus Electronic Headset With 4 Microphones. ma0600cs. Electronic. Electronic earmuff with 4 independent high frequency directional microphones. - Muff style hearing protection with the added benefit of sound amplification. - Not only can you protect your haring while shooting, you can still hear range commands and normal conversation without having to expose your hearing to harmful muzzle blasts. - Automatically compresses harmful impulse and continuous noises to a safe hearing range below 85dB without clipping or cutting. - Adjustable CoolMax headband moves moisture away while providing cool comfort. - Collapses for easy storage.