Eletech's ProAdapt Pigtail adapters combine beauty and function for changing your cable termination From Eletech Eletech's Pigtail adapters allow you to change the termination of your 2.5mm headphone cables without resorting to cheap, poorly made adapters which are prone to failure and degrade your signal quality. The ProAdapts are forged with Bespoke components and use the shortest signal path to ensure there is minimal or no sound quality degradation! These pigtails are best paired with IEM cables of the same material to ensure sound signature synergy. Socrates: 7N purity monocrystal copper Plato: pure monocrystal silver Iliad: monocrystal silver, palladium plated silver, and gold They are terminated with 2.5mm female on one end and either 3.5mm or 4.4mm male  on the other. Includes Eletech IC Case