How do you amplify a cell phone’s sound?
Instead of buying speakers to use your phone for dinner-party music, try these reader tricks to pump up the volume:
58% ❤ this idea! Put the phone in an empty soup bowl, says Sue Perl. Sound waves bounce off the bowl, making the music louder.
42% ❤ this idea! Cut a slit into the side of a toilet-paper tube and insert the phone (speaker down), says Liz Moss. Sound is amplified as it travels through the tube.