Technically you could zip tie or duct tape an Amazon Basics Bluetooth speaker to just anything even a lawnmower. This looks like just one step above that.
It’s a shame they didn’t add a DIN head unit slot and throw a plastic cover over it, preinstall install speaker wires. Anyone could then DIY a real stereo for less than they are probably selling the Bluetooth speaker/soundbar.
Or even just conduit between all the common places we would need to run cables.
or just pre-installed dashboard speakers with an AUX input and single volume+power knob. very cheap off the shelf parts. would save customers from weird bluetooth speaker setups, and would support a wide variety of devices – from iPods to tablets to pocket radios.
no speakers and low range are the only two things I'd quibble about. and maybe the price, seems too high for what you're getting.