Keep your ears secure and protected during all your DIY wielding and drilling projects with the ACE Over Ear Protection Headset It comes with a comfortable universal fit headband that provides a snug fit, irrespective of the head size The foam filled cushion gives great insulation and with a SNR value of 27db it protects against most penetrating machine noises CE approved safety standard makes the ACE Over Ear Protection Headset a must have for both professionals and occasional hobbyists