Los Angeles (January 6, 2014) – Making a sound impression on consumers since the August 2012 launch of its flagship Phantom headphones, the first-ever headphones with internal and external speakers, Boomphones today announced that it has joined forces with Carbon Audio, the Portland-based start-up that launched in 2011 and took its award-winning Zooka tablet speaker from Kickstarter Los Angeles (January 6, 2014) – Making a sound impression on consumers since the August 2012 launch of its flagship Phantom headphones, the first-ever headphones with internal and external speakers, Boomphones today announced that it has joined forces with Carbon Audio, the Portland-based start-up that launched in 2011 and took its award-winning Zooka tablet speaker from Kickstarter