Maximum compatible headphones dimensions (case inside): 10 x 8¾ x 5¼ inches ( 25 x 21.5 x 13 cm ) Engineered ultra-hard shell protects against drops, impacts or crushes. Internal mesh pocket conveniently stores cables, chargers, AMP, earpads, adapters, iPod and other accessories. Compatible with AKG K845, K540, K514MKII, K512MKII, K511, K371, K361, K167, BOSS Wireless Guitar Headphones System, Behringer HPX2000, Beyerdynamic DT880Pro, DT880, FOCAL Utopia, Stellia, Sennheiser RS175RF, HPM1000, HD660s, HD650, HD599, HD598CS, HD579, HD569, HD559, HD280PRO, HD 400 PRO case. If the case doesn't fit or break within one year, Geekria will replace or refund. No question asked.