Key benefits and features Dual 12bit audio spectrum displays provide resolution visualization of input signals with a compact footprint. Ultrasmall form factor makes it suitable for tight enclosures and portable projects. Built with quality materials and quality for reliable performance and durability. Classic color scheme for clear status indication: seven green indicators, two orange indicators, and three red indicators. Timedivision sampling caveat: when the microcontroller uses timedivision sampling, there may be differences in the amplitude displayed by the two light bars if the same signal is fed in parallel through two channels. 23 practical use scenarios Small desktop or home audio visualization: add realtime spectrum display to a compact audio setup for immediate visual feedback on music playback. Microcontroller and DSP projects: integrate into DIY electronics or learning kits to demonstrate spectrum analysis and signal visualization in realtime. Educational demonstrations and prototypes: use in classroom or lab environments to illustrate multichannel sampling behavior and spectrum display concepts without bulky equipment.