With this new headphone concept, the GoStereo Tune In and Tune Out headphone offers you versatility as far as listening to audio or videos.
A 2-in-01 gadget, this headphone can transform into actual speakers if you get tired of listening privately. You can place it anywhere you please whenever your ears get tired or when you want to have others listen to what tune is playing.
The only bad thing about it is that the sound quality. The GoStereo Tune In Tune Out Headphones suffer from cheap construction and only offer average sound quality.
(Source) CNet Reviews