(https://forum.dhammacitta.org/proxy.php?request=http%3A%2F%2Fwww.blogcdn.com%2Fwww.engadget.com%2Fmedia%2F2010%2F01%2Ffils-hed-01092010.jpg&hash=d1298a1cba866a77b345b5b9bcc2e43913e48372)
http://www.engadget.com/2010/01/09/fils-sound-film-transparent-speaker-hands-on-video/ (http://www.engadget.com/2010/01/09/fils-sound-film-transparent-speaker-hands-on-video/)
speaker dari plastic/filem transparant