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(2012, February 23). The History of Headphones. Visual.ly. Retrieved Septemeber 20, 2013. http://visual.ly/history-headphones
(2013, September 13). Headphone Market Booming as Portable Devices Become Primary Music Player. Knowledge Partner. Futuresource Consulting. Retrieved from http://www.ceatec.com/report_analysis/en/ra_120913_2.html
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Fekadu, Mesfin (2011, December 12). Headphones vs. Earbuds: Dr. Dre Joins The External Battle. Huffpost Arts & Culture. Retrieved from http://www.huffingtonpost.com/2011/12/22/headphones-vs-earbuds_n_1165385.html
Frucci, Adam. (2006, November 27). Future Wireless Headphones to Transmit Music Through Your Body. Gizmodo. Retrieved from http://gizmodo.com/217441/future-wireless-headphones-to-transmit-music-through-your-body
Fenlon, Wesley (2013, March 13). How Headphones Have Evolved Since the 19th Century. Retrieved from: http://www.tested.com/tech/454239-how-headphones-have-evolved-19th-century/
France, Jasmine (2009, April 17). All In One MP3 Player Headphones. CNET. Retrieved from: http://reviews.cnet.com/4321-6490_7-6655589.html
Jackson, Tiara (2013, June 12). The Era of Celebrity Branded Headphones. Digital Dialogue. Retrieved from http://www.ce.org/Blog/Articles/2013/June/The-Era-of-Celebrity-Branded-Headphones.aspx
McManus, Melanie. (2013). Earbuds Vs. Headphones. How Stuff Works. Retrieved from: http://electronics.howstuffworks.com/gadgets/audio-music/earbuds-vs-headphones.htm
Morrison, Geoffrey. (19 September 2013). Noise Cancelling vs. Noise Isolating Headphones. Forbes. Retrieved from:
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Newman, Mike (2012, August 18). The History of Headphones. Cool Material. Retrieved September 20, 2013. http://coolmaterial.com/roundup/history-of-headphones/
O’Connor, Dayton (2012, September 17). The Premium Headphone Market Is Now A Billion Dollar Industry In The U.S. Plugged In. Retrieved from:
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Pollicino, Joe. (2013, July 24). Beats Unveils Refreshed Studio Headphones With 20 Hour Battery, Improved Comfort. Engadget. Retrieved from: http://www.engadget.com/2013/07/24/new-beats-by-dre-studio-headphones/
Sanburn, Josh (2013, January 16). How Dr. Dre Made $300 Headphones a Must-Have Accessory. Time Business & Money. Retrieved from http://business.time.com/2013/01/16/how-dr-dre-made-300-headphones-a-must-have-accessory/
Stamp, Jimmy (2013, March 13). A Partial History of Headphones. Smithsonian. http://blogs.smithsonianmag.com/design/2013/03/a-partial-history-of-headphones/
Thompson, Derek (2012, May 30). How Headphones Changed the World. The Atlantic. Retrieved from http://www.theatlantic.com/technology/archive/2012/05/how-headphones-changed-the-world/257830/
(2012, February 23). The History of Headphones. Visual.ly. Retrieved Septemeber 20, 2013. http://visual.ly/history-headphones
(2013, September 13). Headphone Market Booming as Portable Devices Become Primary Music Player. Knowledge Partner. Futuresource Consulting. Retrieved from http://www.ceatec.com/report_analysis/en/ra_120913_2.html
Bergen, Jennifer (2011, October 25). Ten Years of Apple Commericals. PCMAG.CO. Retrieved from http://www.pcmag.com/article2/0,2817,2395250,00.asp
Bush, Michael (2010, November 15). Beats by Dr. Dre. AdvertisingAge. Retrieved from http://adage.com/article/print-edition/beats-dr-dre-america-s-hottest-brands-2010/147035/
Fekadu, Mesfin (2011, December 12). Headphones vs. Earbuds: Dr. Dre Joins The External Battle. Huffpost Arts & Culture. Retrieved from http://www.huffingtonpost.com/2011/12/22/headphones-vs-earbuds_n_1165385.html
Frucci, Adam. (2006, November 27). Future Wireless Headphones to Transmit Music Through Your Body. Gizmodo. Retrieved from http://gizmodo.com/217441/future-wireless-headphones-to-transmit-music-through-your-body
Fenlon, Wesley (2013, March 13). How Headphones Have Evolved Since the 19th Century. Retrieved from: http://www.tested.com/tech/454239-how-headphones-have-evolved-19th-century/
France, Jasmine (2009, April 17). All In One MP3 Player Headphones. CNET. Retrieved from: http://reviews.cnet.com/4321-6490_7-6655589.html
Jackson, Tiara (2013, June 12). The Era of Celebrity Branded Headphones. Digital Dialogue. Retrieved from http://www.ce.org/Blog/Articles/2013/June/The-Era-of-Celebrity-Branded-Headphones.aspx
McManus, Melanie. (2013). Earbuds Vs. Headphones. How Stuff Works. Retrieved from: http://electronics.howstuffworks.com/gadgets/audio-music/earbuds-vs-headphones.htm
Morrison, Geoffrey. (19 September 2013). Noise Cancelling vs. Noise Isolating Headphones. Forbes. Retrieved from:
http://www.forbes.com/sites/geoffreymorrison/2013/09/19/noise-cancelling-vs-noise-isolating-headphones/
Newman, Mike (2012, August 18). The History of Headphones. Cool Material. Retrieved September 20, 2013. http://coolmaterial.com/roundup/history-of-headphones/
O’Connor, Dayton (2012, September 17). The Premium Headphone Market Is Now A Billion Dollar Industry In The U.S. Plugged In. Retrieved from:
http://www.ourstage.com/blog/2012/9/17/the-premium-headphone-market-is-now-a-billion-dollar-industry-in-the-u-s/
Pollicino, Joe. (2013, July 24). Beats Unveils Refreshed Studio Headphones With 20 Hour Battery, Improved Comfort. Engadget. Retrieved from: http://www.engadget.com/2013/07/24/new-beats-by-dre-studio-headphones/
Sanburn, Josh (2013, January 16). How Dr. Dre Made $300 Headphones a Must-Have Accessory. Time Business & Money. Retrieved from http://business.time.com/2013/01/16/how-dr-dre-made-300-headphones-a-must-have-accessory/
Stamp, Jimmy (2013, March 13). A Partial History of Headphones. Smithsonian. http://blogs.smithsonianmag.com/design/2013/03/a-partial-history-of-headphones/
Thompson, Derek (2012, May 30). How Headphones Changed the World. The Atlantic. Retrieved from http://www.theatlantic.com/technology/archive/2012/05/how-headphones-changed-the-world/257830/