Hi-fi earphones with gold-plated connectors.
The high-fidelity 900 Audiophile In Ear headphones from Sennheiser feature X3R technology, one-piece precision-milled aluminum housing and gold-plated Fidelity+ MMCX connectors. These earphones are supplied with three detachable cables (unbalanced and balanced) and ear adapters in silicone and memory foam.
Specifications
Impedance = 18 Ω