Vibration speaker AIYIMA 20-25 W

If you lean it against any solid surface, it transmits vibrations to it, turning it into a large speaker.
Most of those who ordered are purchased for the re-education of neighbors (they lean against the ceiling / walls and make speakers from neighboring apartments).
Sometimes they are used for rituals of expelling moles from the site, someone attaches them to tables and computer chairs to transmit vibrations in video games.
To work, you need an amplifier, for example, this -
You also need to press the column against the plane with something damping, most use a tennis ball. Repair sound Rotary hammer mix 0:46
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