I use a USB-C to USB-Micro OTG cable from Amazon and attach a Sony Walkman USB-Micro to Sony adapter. But @bflat is correct you could just use the WM1A to BT receiver and connect your S9 via LDAC.
BT receiver mode works great for CD quality and 16bits FLACs. Form with I found out online, it isn't good enough for 24bits unfortunately. Qobuz streaming at 24bits/96khz and sometimes go up to 192khz. I saw aliexpress has WM-port to micro USB but not the type C that I'm looking for. For now, I will go for USB adapter. Hopefully someone have it for sell soon.
USB C to Micro USB OTG Cable,... https://www.amazon.com/dp/B0744BKDRD?ref=ppx_pop_mob_ap_share Sony Micro USB plug ËWM-PORT conversion adapter WMP-NWM10 B Japan Import https://www.amazon.com/dp/B009F2GCX8/ref=cm_sw_r_cp_api_i_jvqRCbAVC0HZ5 These are the two components that i purchased that allow direct connection to a USB-C source Cheers
LDAC on the WM1A/Z is capable of 24bit 96khz. https://helpguide.sony.net/dmp/nwwm1/v1/en/contents/TP0001449075.html
Nothing like the sound of headphones at 80mph. http://www.vannuys.co.jp/official/new_item/vd984/ I guess you could consider me a “shut-in”.
Hell no! I am not turning this beloved hobby into a job or a workout. The weight of a 1Z is about the limit.