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
