Maximum compatible headphones dimensions (case inside): 8.26 x 7.08 x 2.36 inches (21 X 18 X 6 cm). 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, chargers, AMP, earpads, adapters and other accessories. Compatible with AKG K67, K619, K610, K545, K540, K545, K540, Audio-Technica WS77, ESW9, ESW10, ES88, ATHM50, ANC29, B & O H95, H9i, H9, H8, H6, H4, Form2i, Beats Pro, Mixr, EP, Cowin E7, JBL EVEREST700, EVEREST300, Sony WH505, NWZWH303, MDRZX770BN, MDRXB950BT, MDRXB920, MDRXB900, MDRXB650BT case. If the case doesn't fit or break within one year, Geekria will replace or refund. No question asked