Interesting device.
It is still listed at Synst:
http://synst.gmc.globalmarket.com/products/details/desktop-wifi-internet-radio-receiver-406885.html
http://www.globalmarket.com/product-info/desktop-wifi-internet-radio-receiver-406885.html
You could ask them for firmware.
Alternatively open the device and make some photo's from the inside. The main PCB might give some more info on where it originally comes from.
~William