Sordin Supreme IV Basic Electronic Muff Green. The Sordin Supreme IV Basic Earmuffs in Green allow for 1:1 sound reproduction that protects your hearing without isolating you and allows communication with those around you. Up to 150 hours of battery life from 2 AAA batteries with a handy battery save function and automatic switch off. The slim cups are ambidextrous and fold to fit neatly in your pocket. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. Goldwin CORDURA Stretch Ventilating Pants Desert Taupe. Goldwin Airly Shell Packable Wind Jacket Sprout Yellow. Rototo Womens Two Stripe Sock Light Yellow. Rototo Womens Dye Sock Water Blue.