Collars and physio braces.

Sorry this isn't an acupuncture query but Vets doing acupuncture may have come across these. Does anyone have any experience, views and/or feedback from Streamz collars or Biko physio braces. I have a couple of acupuncture patients whose owners pursue all sort of additional ways to keep their aging dogs comfortable/mobile. Both look good in theory but it would be nice to find out a bit more. Thank you.