Beyerdynamic DT Hard Case Sturdy hard carry case for circumaural headphones Sturdy hard case with fabric coating on the outside. Inside coated with velour. Internal small, pocket attached with hook-and-tie fastener, where you can store small parts (i.e. 6.35 mm adapter). Fits beyerdynamic circumaural headphones such as: T70, T90, Custom One Pro, Custom Studio, MMX 300, and all DT 770, 880, and 990 Premium, Pro, and Studio Edition Headphones