Performance 7Band Sound Equalizer and Headphone Amplifier Designed for audio enthusiasts and professionals seeking precise sound control and quality headphone performance. This unit combines a versatile 7band equalizer with a powerful headphone amplifier, ensuring enhanced audio clarity and for various applications. Key Features and Benefits: 3.5mm Interface with Microphone Support Standard 3.5mm input interface supports 4pole plugs. Compatible with headsets featuring builtin microphones for clear mobile phone voice calls. Includes an additional interface terminal for broader connectivity options. Precise 7Band Equalization Control range of ±12dB for accurate sound shaping. Frequency bands: 60Hz, 150Hz, 400Hz, 1kHz, 3kHz, 6.5kHz, 15kHz. Utilizes TI or TL074 circuitry for reliable and consistent audio performance. Powerful Preamplifier 4580 classic operational amplifier delivers 5X amplification (14dB gain). Input impedance: 20K for audio signal reception. Output impedance: 600 ohms for stable signal delivery. Quality Headphone Amplifier NE5532based balanced headphone amplifier driving a 47earphone driver circuit. Easily powers a wide range of headphones with adjustable volume height. Ensures clear, distortion audio playback across all listening volumes. Applications and Use Scenarios: 1. Enhancing mobile phone communication with microphone and headphone integration for clearer calls in noisy environments. 2. Finetuning audio in a home studio, allowing musicians and sound engineers to control specific frequencies with precision during recording or mixing. 3. Improving playback quality in fidelity home audio systems, giving listeners complete control over bass, midrange, and treble levels. Performance Highlights: Professionalgrade equalization and amplification, suitable for both casual and critical listening. versatile interface for seamless integration with mobile devices, home audio equipment, and studio setups. Robust build and reliable components ensure consistent operation and long service life. This 7band equalizer and headphone amplifier provides the functionality, control, and compatibility you need to elevate your audio experience, whether for communication, music production, or everyday listening.