With the 233621 app, now you don’t have to pause what you're doing to change things up. Customize your headphones with a linkage function for this app to your liking. Customize equalizer settings, remap touch gestures, update to the latest firmware, and much more. 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 with our very intuitive user interface. ABOUT THE