Features: Experience superiorsly auditory control with the Tone Control Board HIFI NE5532 Tone Board Preamplifier module. Features double NE5532 chip for high stability and efficient, perfectly for enhancing your sound projects. This preamp module offers a wide frequency ranging of 20-20KHz and supports both 2.54mm and 5.08mm connectors, ensuring versatiled connection option for various auditory setting. For audiophiles, electronic DIY enthusiasts, and professional Auditory engineers precise tone adjustments in their auditory devices. Perfectly for home auditory system upgrades,Auditory projects, and small recording studio applications where fine tuning of treble, midrange, bass, and total tone is essential. Specifications: Item： Tone Control Board Chip: Double NE5532 Chip Tone Board Frequency ranging of 20-20KHz Size：about 10x4.35cm/3.94x1.71in Package Includes: 1Set Tone Control Board note: Please allow 1-3mm error due to manual measurement. please make sure you do not mind before you bid. Due to difference between different monitors, the picture may not reflect actual color Thank you!