Peltor 3M X5A Ear Defenders with Headband, Black & 3M Optime I, H510AC1, Ear Muffs Headband, Lightweight Ear defenders, Hearing Protection reduces noise level by up to 27dB, Pack of 1 :
Peltor 3M X5A Ear Defenders with Headband, 37 dB, Black & 3M X2AC1 X2 Earmuff; Ear Defender, Hearing Protection against noise levels in the range of 94-105 dB (SNR: 31dB) : Amazon.co.uk:
3M X5 Peltor Headband Earmuffs Ear Muff Noise Hearing Protection Class 5 PPE X5A | eBay
3M™ X5A-EACH Peltor™ Over-the-Head Earmuffs, X5A, black | International Safety
Peltor X5A SNR 37 dB black ear muff defender with headband - 2M0008 - 3M