Customize Sony headphones with a linkage function for this app to your liking. Everyday music becomes even more enjoyable with easy controls. You can quickly connect to a smartphone by following a guide. You can easily start to use it even if it’s your first time. Main Feature • A “software update” that enables all the functionalities and enhanced performance for your headphones. • "Equalizer" allows you to set the sound quality to your liking. • "Ambient Sound Control" for changing noise canc