This new hearing protection with FM radio has a new headband that centralises the pressure on the headband, giving less pressure on the ears. It has improved attenuation and improved sound quality. The ear muffs are individually designed for the left and right ear, meaning that they follow the shape of the head. This gives a perfect fit for all ears. Has Audio input 3.5mm (AUX) for mp3 or communication radio. Noise reduction - SNR - 27dB(A). Meets requirements of EN352-3:2002, EN352-6:2002 and EN352-8:2008.