Excerpt: Hi, this review is about Sony’s earphone MDR-EX300SLB. Manufacturer Sony was founded by Akio Morita and Masaru Ibuka around 1946. They were originally called Tokyo Tsushin Kogyo, which is interpreted as Tokyo Telecommunication Engineering Company. Morita and Ibuka earned a living by repairing radios and manufacturing voltmeters. They were always designing and manufacturing new electronics. One of their first innovations was the automatic rice cooker that was successful.