3M PELTOR Optime III Earmuffs, 34 dB, Black/Red, Helmet Mounted, H540P3E-413-SV by Amazon.co.uk

• Ideal hearing protection against noise arising from extremely noisy environments like airports, marine engine rooms, power stations and print works

• Double casings technology helps minimise resonance effect and soft wide cushions helps reduce pressure around the ears and improves comfort and wearability

• Large space inside cup helps reduce moisture and heat build-up

• Easy to replace cushions and inserts helps keep them hygienically clean

• P3E Helmet attachment for helmet mounting