These transparent speakers are not only aesthetically unique, but also use glass to improve sound.
Designed by Turtle Beach, the Hypersound Glass speakers work by driving sound into a "highly focused beam directly in front of them while being inaudible outside the beam's range." This means that if the user is within this range, they will be able to hear the sound coming from the speakers -- if they are outside the range, they will not. This unique technology may not be ideal as home speakers, but can have a wide variety of uses.
The technology used to create these speakers could help improve privacy in services that require it -- such as the use of ATMs. Due to the directional nature of these speakers, individuals with hearing impairments may benefit from listening to their highly focused sound without having that sound leak out to those around them.