Our connectors are copper bassed with 4 layers of plating.
Nickle, Palladium, Silver, and Rhodium.
Terminations are availible as below.
2.5mm TRRS Balanced
4.4mm TRRRS Balanced
Shell: Stainless Steel
Rear opening: 6mm
Please contact us directly for quantity over 20pcs or if you have other questions.