AIR DEFENDER Foam Ear Cushions Style_Over-Ear ADVANCE BT is the first

ADVANCE BT is the first of its kind

and charging case lanyard

Improved battery life up to 50 hours

Communicate with colleagues and listen for warning signals all while enjoying nonstop certified protection

AIR DEFENDER Foam Ear Cushions Style_Over-Ear ADVANCE BT is the firstISOtunes TRILOGY AIR DEFENDER Hygiene Kit offers a trifecta of benefits for optimal hearing protection: superior comfort, noise isolation, and sound quality. Packaging includes 2 ear cushions, 2 outer fabric replacements and 2 foam ear cups. AIR DEFENDER Hygiene Kit is compatible with the ISOtunes AIR DEFENDER. For regular users, we recommend replacing ear cushions, fabric lining, and foam inserts every 3 9 months depending on the frequency of use.