Any Opinions on mifo FiiTii HiFiFree Wireless Headphones?

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Has anyone tried the mifo FiiTii HiFiFree Wireless Headphones? These are over the ear headphones that look the headphones that came with your walkman in the 80's. I have a pair JLab wireless headphons which are similar. They are just $20.00 and are super comfortable to wear, but don't deliver the best sound. I would love a similar pair of headphones that sound like the old Sennheiser PX100 or Koss PortaPros, wondering how close these come. At $20 I'm willing tp give anything a try. At $100 I'd rather hear an educated opinion first.

https://www.amazon.com/gp/product/B0CQR9R4H5/ref=ox_sc_saved_title_2?smid=A1K2K1ASJPBSV1&th=1

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