10-05-2021, 02:52 AM
Two phones maybe are not correlated well as two headphones of the same phone and the interference will be absent. . .
By the way I did not use the toilet rolles, I used a tube. The tube length is limited by the distance between the headphones.
By the way I did not use the toilet rolles, I used a tube. The tube length is limited by the distance between the headphones.