In the spring of 2017, our “T3-01” headphones, which was developed and released with an aim to achieve “ultimate natural sound” that’s unique to “TAGO STUDIO” have been supported by many and were able to establish high reputations.Our next mission was to realize the natural sound of “T3-01” with much more portable canal-type earphones.“T3-01” was assumed to be used in studios, however, “T3-02” is assumed to be used in outdoor settings.The environment isn’t always quiet, and we also have to take the factor of sound leakage into consideration, so high performance in sound insulation, in particular, was a very important element to us.We kept on seeking for the most appropriate sound for outer environment in terms of structure, design and tuning.We searched and searched without compromising for “ultimate natural sound that’s portable.”