Product Review

These are the most comfortable replacement Gel Ear Cups available for your HL Impact Sport, Bolt, PRO, Sync, Leightning and Viking headphones Some key features include:* Skin made of extremely strong and durable TPU (urethane) * TPU is flexible, soft and resistant to skin oils performing well when in direct contact with human skin * Gel is soft and resilient * Creates excellent seal against the wearer's head * Seals nicely around safety or prescription eyeglasses * The foam has high energy-absorption characteristics enabling it to absorb up to 97 percent of impact. * Slow to recover after deflection, effectively resisting compression. * Installation instructions: 1. Simply remove your existing ear cups. 2. Clean the surface of your HL Impact Sport headphones. 3. Remove adhesive backed Gel cup from backer 4. Press down along surface for good contact. 5. Repeat steps for the other side.