Hearing Aid Advertising

Why do hearing aids advertised as "discreet" when Bluetooth is very visible?
If there is a stigma about wearing a hearing aid would be preferable to make them look like Bluetooth headsets?
Ive got a small hearing aid money and I do not give madmen who noticed. I feel a real plonker walking around with a bluetooth stuck to the ear if.
Siemens Pure TV-Spot / Shawnae Jebbia 2009 / Video
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