Inspired by unconscious actions such as rubbing and playing with objects at hand when people are anxious, the sound is divided into three parts: a main sound and two modulation knobs. There are physical buttons on the main stereo, which can independently complete basic functions such as music playback. When the pressure is high, you can press the unlock button to control it with a knob.
The knob module can switch the main function by rotating the lower knob, and the tactile stimulation given by each rotation will also change the tone or music beat of the music. In this process, the user can intuitively and clearly feel the feedback of the action, which is more conducive to the relief of pressure and the diversion of attention.

The main knob function can be switched by turning the bottom knob to align different marks at the bottom with the red indication. The three marks correspond to multi-functions (pause playback, cut songs, etc.), audio synthesis (change music tone), music hot key (volume adjustment)

Modular design, through magnetic connection, easy to remove the knob module to play