Hi, here is the quote in which 'bells and whistles' is used.
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But I found the dictionary explanation as follows.the founders and employees of these new companies will look for lower cost CAD software that can get the job done without the added expense of unnecessary bells and whistles.
Which, to me, indicates that the word 'unnecessary' is not necessary in the first paragraph, am I right?Innovative and flashy, but often unnecessary and confusing, features of a product such as computer hardware or software. Originally referred to the ‘toy boxes' on theater organs of the silent-movie era.
Thank you for your attention.
Best Regards.