Exhibitors/Demonstrators/Endorsed Artists (red badges) may take instruments and products in and out if the name on their badge matches the product.
All other badge types including Networking Badge holders are not allowed to carry in products or instruments. There are no exceptions.
If you are performing in a booth or on a stage inside the exhibit hall and are not in an Exhibitor, Demonstrator, or Endorsed Artist (red) badge you must obtain a Product Release Pass to enter and exit the building with an instrument. These passes are available at all security check point areas.