The Ultimate Alpha Quad 360 Muff provides excellent protection and comfort and can be worn just about anywhere. The four hi-gain omnidirectional microphones pick up sound equally from all directions, which preserves and enhances your ability to hear. The Alpha Power's are NRR rated at 26dB which protects against damage to your hearing, and the sound-dampening composite housing keeps your ears comfortable. Features: Four Hi Gain Omni Directional Microphones Low Noise/Frequency tune for natural sound clarity Independent volume control Compact folding design