1. High fidelity transmission, high definition lossless HiFi level sound quality 2. Imported PMMA high quality optical fiber core, signal transmission is not subject to electromagnetic and noise interference, no noise and no current rope generation, better and clearer audio and video quality 3. High-strength full metal shell, strong and durable, protect the connector to make the transmission more stable 4. Highly polished convex lens fiber optic head, can highly focus the beam, reduce the transmission time difference and distortion, make the transmission signal high fidelity video and audio more clear 5. Both ends of the light port are equipped with dust caps to prevent oxidation of the optical fiber port in contact with air and to protect the port for longer service life 6. Compatible with most SPDIFToslink port devices 7. Dolby AC3 and DTS surround technology, standard SPDIF protocol transmission, support transmission of PCM, Dolby DOLBY, DTS, 5.1 and most other audio signals 8. Braided mesh protection, flexible and tensile, protects the cable and reduces damage 9. 24K gold-plated port, reduce oxidation and rust, prolong the service life, more stable signal transmission 10. Sheath thickness: 5mm 11. Innermiddle cover material: PE 12. Sheath material: PVC 13. Cover material: nylon braid 14. Case material: full metal mesh 15. Port: gold plated