What is the fine-grained topic of the following text: Putting control over your sound at your fingertips, the system integrates several essential elements: magnetic pickups for authentic and classic electric guitar sounds; a piezo pickup system for rich-sounding traditional and acoustic instruments; a powerful DSP engine; familiar volume, tone and pickup selector controls and a Control Module that provides instant access to important tone-shaping parameters. Only return the topic.
Guitar pickup system with integrated controls and features