Anti-noise Impact Sport Hunting Electronic Earmuff Shooting Ear Protection Tactical Hearing Protector Earmuffs (Army Green) Active volume hearing protector Noise reduction approx.20dB(SNR). Localizes weak sounds and attenuates impulse sounds Electronic pickup adjust system,no need take off the earmuff Reduces hazardous impulse noises from firearms to harmless levels within 5 milliseconds. Color : Black or Army Green (send it random)