Carlsberg asked to come up with some cool products for their 'Born to be Chilled' campaign. Out of the range, I've worked on the sound amplifier design . We nick-named it The Slipper :D . There were other designs suggested, such as some cool faceted amplifiers, which I thought looked more cool... But oh well, I guess :]
Generally the product is compatible with most smart devices and does actually boost the sound :D I saw some colleagues around the building doing some little work , their phones playing loud music with the help of this little fella :]
The benefit of silicone material is that the sound bounces around a little bit softer in the chamber. With hard plastic chamber the sound would have a really tight and sharp quality to it.
It was distributed in ASDA stores at the beginning of summer (sorry, I'm a bit late to share this design here :/ ) .