The humble music box gets a 21st century update

Outside of horror movies, music boxes are pretty cool, but their big flaw is that they can only play a few bars of one song. That's why Taiwanese company Tevofy Technology has sought to update the music box for the modern age, in the form of the Music Robot Box, or Muro Box. Traditional music boxes have a cylinder of pins that, as they turn, pluck the tines of a steel comb that, as they vibrate, make a sound. The principles are similar to that of hammers hitting piano strings, although you're limited by the size of the cylinder and the notes the comb has been cut to play. The difference between that and MuRo, is that the cylinder has been replaced with several computer-controlled rings.