Now on the electronics market there are quite a lot of different kinds of acoustic systems, including those designed exclusively for mobile devices. Some devices are quite high-quality, others are ordinary consumer goods with sound quality much lower than the standard. In general, a lot of things. But the other day the list of acoustic devices was replenished, with the advent of a very interesting device Vibroy. This device as a whole can be described as vibrodynamic.
Vibroy can be mounted on almost any horizontal surface, and when you connect a device that reproduces music, it all sounds, thanks to an interesting solution, as one big speaker. Understandably, if you attach Vibroy to a concrete wall, then it will not sound. But in the case of the cardboard box, everything is completely different. What exactly can work with Vibroy as a column can be seen in the video below. ')
Vibroy receives a signal from the usual 3.5 mm jack, while the frequency response of the sound lies in the range of 300 Hz - 10 kHz, which is pretty good. The noise level in this case is 78 dB. Vibrodynamic from two AAA batteries is powered. Operating time from such batteries makes 10 hours.