Hello I was recently in the process of modding Mariokart ds and upon checking the rom (which I had dumped from my cartridge it reads NTR-AMCE-AUS it was also bought in a local Australian store) I found that the rom loaded onto the cartridge is indeed American this isn’t an issue as original ds...
@K3Nv2 I got some cheapies at wallys, that are pretty good, already have lost a few expensive ones (one falls out and gone, can't find) while cutting grass so bought some cheap ones, and of course never lose these cheap ones. (Cheap meaning only $35, compared to air buds which I only have 1 of 2 now)