The Bone Fone claimed to provide a music listening experience through bone conduction, which is a thing. How well this worked from this device, I am not sure. There are specialty applications of bone conduction for hearing impaired individuals or noisy industrial environments. It doesn't seem to have set the audiophile world on fire, although there were a few clones of the Bone Fone.
Smartphones dethroned Bone Fones from the music zone, but we shouldn't be too prone to moan or disown the shown Bone Fones.
The ad's $70 price is around $280 in 2026 USD.
I have a set of base model Shokz openrun headphones. They were great when I was a manager years ago and was stuck in the office all night doing paperwork. My crew would come in asking me questions and I didn't have to unplug a earbud or keep one ear always open. I could still hear everything around me but also listen to music or the news.
Now I'm somewhere that has no music for safety reasons but I don't mind so much since it is better than country music on the radio like I had at my last place.