LINK 2.0 Helmet Mount DEFY Slim Passive is the

DEFY Slim Passive is the ultimate earmuff for distraction-free

The DEFY Slim Cushion Kit is compatible with the DEFY Slim

replaceable lithium battery

For regular users

With a Single Noise Rating of 32

LINK 2.0 Helmet Mount DEFY Slim Passive is theISOtunes LINK 2. 0 Helmet Mount is the ultimate solution for professionals in need of both head and ear protection on the job site. Equipped with Bluetooth connectivity, up to 50 hours of battery life, and an optional boom mic attachment, LINK 2. 0 HM is perfect for all day wear in any environment. Universal clip fits a wide range of safety helmets. See FAQ below for a list of certified helmets.