3M™ PELTOR™ Optime™ III Earmuffs ** Lead Time Delivery: 3 - 6 weeks High performance hearing protectors for use in extremely loud environments, reducing noise levels by up to 34 dB. They have a double casing that minimises resonance and comfortable soft, wide cushions to decrease pressure around the ears.  DOSH SIRIM Approved Reduces noise levels up to 34 dB (SNR) Double casing technology minimises resonance effect Large space inside the cups helps minimise heat and moisture build-up Soft, wide, foam cushions help reduce pressure around the ears 3M™ E-A-Rfit™ Dual-Ear Validation System testable