What’s Walkman in the plural form? Should we say, Walkmen? Well, those who currently own the Sony Walkman NW-A828/A829, NW-S615F/S616F and NW-S715F/S716F/S718F will be able to download a firmware update that fixes volume issues when using the aforementioned devices with the CMT-V3, CPF-NW001, SRS-NWGU50, SRS-NWGM30, SRS-NWZ10 stereos, alongside the WLA-NWB1 Bluetooth adapter as well. This is currently on offer by Sony Japan, and there is no word on whether it will be compatible with your model if you happen to live outside of the Land of the Rising Sun.