Each pair of ear covers are individually packaged. Comfort Clean is for pilots, passengers, air traffic controllers, phone operators, etc.. .. Adaptable to all models of headphones from the Following brands: Bose, David Clark, Sennheiser, Flightcom, Peltor, Lightspeed, ASA, Pilot, Lafayette, Bayer Dynamics, Sony, Technish, Bang & Oluffsen, Samsung, JVC, Telex, Sigtronics, Roanwell, Telephonics, NCT Technologies, Sordin