Geekria UltraShell Headphone Case for Sennheíser HD599, HD598CS, HD280PRO, ÂKG K167, K540, Beyërdynamic DT 880, DT 880 pro Headphones - Replacement Large Hard Shell Travel Carrying Bag

Geekria Shield Case for Large-Sized Over-Ear Headphones, Replacement Protective Hard Shell Travel Carrying Bag with Cable Storage, Compatible with Sennheiser HD 599, HD 660S 2, AKG K167 (Black)

Geekria 4.4mm Male to 3.5mm (1/8'') Balanced Female Headphones Adapter for 3.5mm 4-Pole Cable Connected to Balanced 4.4mm Player Device, Aluminum Alloy Conversion Audio Plug, Gold Plated Adapter

Sennheiser HD 660S2 Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black