NotchNook is a product that utilizes the notch of Mac's notch screen to provide users with convenient media control, calendar event viewing, temporary file storage and transfer, and webcam preview functions. Users can quickly manage music playback, view calendar schedules, temporarily store files by dragging and dropping them to gaps, or send them through AirDrop. They can also preview webcam images with just one click, thereby improving the efficiency and convenience of daily tasks.