Maximum compatible headset dimensions (case inside): 2.75 x 2.16 x 1.18 inches. Compatible with many wired / wireless headphones. Engineered ultra-hard shell protects against drops, impacts or crushes. Soft inner maximize headphones protective in the case. Internal mesh pocket conveniently stores cables, cords, and other accessories. Compatible with Jabra Elite 85t, Elite 75t, Elite 65t, Elite 7 Active, Elite 7 Pro, Elite 3, Elite 4 Earbuds case. A good replacement or upgrade of the original headphones case. If the case doesn't fit or break within one year, Geekria will replace or refund. No question asked.