Ranko Acoustics 4.4 mm 24K gold-plated balanced plug. 

Optimized structure designed. Combined with high purity phosphor bronze conductor.   

Covered with high quality insulator to avoid contact impedance and reduce the dielectric loss to a very low level. 

Choose the shell for high-quality brass plus black fine sandblasting treatment with matte texture.   

Played a high-performance damping protection and anti-noise role. 

Thus the audio signal to are more accurate and stable. Nearly lossless in transmission.