Facebook/Zungle, Inc.

Finding the right headphones is a music-lover's never-ending conundrum. Traditional headphones are clunky, while wired earbuds can't seem to stay untangled.

Los Angeles-based startup, Zungle, wants to replace headphones entirely with a pair of sunglasses that sends sound directly through your skull.

Facebook/Zungle, Inc.

The Zungle Panther sunglasses contain bone-conduction speakers where the frames hit the temples. Instead of then transmitting sound waves outside the ears, they send sound waves as vibrations through the skull. The wearer hears crystal clear sound (which the company claims is comparable to normal headphones), while the outside world hears almost nothing.

The user pairs the device to their smartphone via Bluetooth, and opens their preferred music app on their phone. A dial over the right ear can be tapped to start listening to a playlist or an album, and spun to fast-forward and rewind songs.