Key benefits Adjustable pickup sensitivity ensures accurate spectrum visualization without clipping or weak signals for different instruments and playing styles. Allinone design combines the pickup, amplifier, MCU and LED indicators in a single compact unit, simplifying installation and reducing wiring. Realtime spectrum analysis of audio from the pickup, displayed on an LED array for immediate visual feedback during performance, practice, or teaching. What it is and how it works Includes a pickup, an amplifier, a microcontroller unit (MCU) and LED components. The pickup captures the instrument signal; the amplifier boosts it; the MCU analyzes the spectrum; the LED display visualizes the spectrum in real time. Use scenarios Live performance: visualize the spectrum on stage to guide tone shaping and effect usage for guitar, bass, or other pickupequipped instruments. Studio or practice room: analyze frequency content to inform equalization, dynamics and overall balance of the instrument signal. Educational demonstrations: show students how different notes map to frequency bands and how spectrum changes with playing technique. Compatibility and setup Designed to work with pickupbased instruments and related electronics; intended as an integrated module to connect within typical pickup and signal chain configurations. Notes The description reflects the original features: adjustable pickup sensitivity, an integrated unit with pickup, amplifier, MCU and LED components, and realtime spectrum visualization via LED display.