Earmuff X4 with headband in stainless steel, covered with a soft plastic for extra comfort and electrical insulation. Wide headband for good balance, with an aperture for extra ventilation. Double-Cast (TPU/ABS) housing with details in bright colours for increased visibility. New noise reduction pads for better noise reduction, and 'spacers': an extra seal ring which reduces resonance. Despite recent innovations, these earphones have an extra small housing. Easily adjusted using 'grip areas' on the top and bottom, durable, ergonomic and very light for high noise reduction. Can be combined with 3 respiratory and eye protection. SNR: 33dB.