Sony CD-CASE4 Atrac CD Walkman Carrying Case Compact carrying case for Sony's Atrac CD Walkman models Offers space for CD Walkman and several audio CDs Soft, tough exterior protects device from scratches and dents Adjustable belt fits above hips for jogging or walking Fits DNE300, DNE300PS, DNE306CK, DNF400, DNF400PS, DNE500B, DNE500S, DNE506CK, DNE900, and DNF600 models, does not fit Sony DEJ011 model.