Looking for a case for Sony MDRXB400? Headcase shows 4 evidence-backed options. Top pick: Geekria Shield Headphones Case Compatible with Bose QC Ultra II, QC Ultra/45 II/35 II Gaming Headset, Replacement Hard Shell Travel Carrying Bag with Cable Storage (Dark Grey) (Listed fit). 4 cases are seller-listed by name.
Evidence refreshed July 2026
Seller-listed
4
Named by a case seller
Evidence-backed
4
Recorded fit sources
Listed by Geekria as compatible with this headphone.
Listed by Geekria as compatible with this headphone.
Listed by Geekria as compatible with this headphone.
Listed by Geekria as compatible with this headphone.
Geekria Shield Headphones Case Compatible with Bose QC Ultra II, QC Ultra/45 II/35 II Gaming Headset, Replacement Hard Shell Travel Carrying Bag with Cable Storage (Dark Grey) has the strongest recorded evidence (Listed fit). Listed by Geekria as compatible with this headphone.
Headcase lists 4 evidence-backed carrying cases for Sony MDRXB400. 4 are seller-listed by name.
Each case shown here has traceable fit evidence — for example a seller naming Sony MDRXB400 on a case listing. Headcase does not publish dimensional guesses or unverified rows. Read the fitment methodology.
Headcase evidence index