RT @flyosity: Scientists have invented a 3D-printed ring that can be placed directly in front of a loudspeaker and it will cut out 94% of s… 0 atbildes

Pēteris Krišjānis
(14.03.2019 9:03:41)
@twitter
RT @flyosity: Scientists have invented a 3D-printed ring that can be placed directly in front of a loudspeaker and it will cut out 94% of s…