Have you lost your remote for your TV, AC, stereo or any other obscure piece of electronic equipment ? On …. street not far from Cho Dam market (the main market in Nha Trang) are several street vendors that sell just about every sort of remote you can imagine both new and old.
If you are not sure what your remote looks like just take a pic with your phone of you piece of equipment and show them. there is a pretty good chance they will have one for it.