I'm looking at this device. Internally, the Bluetooth chip isn't shielded but it still seems to have passed FCC. Addition to that, there was no Modular Approval Request Letter, which typically requires one to declare that the radio elements are shielded.
So, how come this could still be approved even without an Approval Request Letter or shield?
Best Answer
I don't think board level shielding is a requirement to pass FCC, unless it's modular, and even then I'm not entirely sure.
Also, that's the same reason there's not a Modular Approval Request Letter because it's not modular. It looks like a self-contained product, not something that connects to something else. I think you're treating it as a Bluetooth module, which do have shielding and are meant to be used with something else, but what you linked isn't a module.