1. Durable gold-plated plug
2. Stable transmission, anti-oxidation
3. TRS: connect the microphone to the black end
4. TRRS: Connect the phone to the white terminal
5. Wire core material: bare copper wire
6. Wire material: oxygen-free copper
7. Wire: Unstretched about 20cm, stretched length about 50cm
8. Weight: about 10g
9. Note: The product only includes cables, others are not included