The CapTune app is a player with integrated sound tuning. It was designed for music lovers and headphone users, with a focus on providing them with individually optimised sound. Thanks to the SoundCheck function, users can compare sound variants with one another by ear, select and store them in individual sound profiles. Users are thus enabled to activate their “perfect” sound for any situation with a single click. The frequency response curve, the equaliser sliders and the effect controllers offer additional possibilities for playfully finding the “perfect” sound.