1. Material: aluminum alloy + cotton wiring + TPE 2. Interface: 3.5mm male to double 3.5mm female 3. Cable length: 30cm 4. Weight: 10g 5. Plug and play, easy to use 6. Widely compatible with a variety of devices, support two devices to use at the same time 7. Compatible with 3.5mm interface devices, using 3.5mm gold-plated connectors, stable and anti-interference, better conductivity, anti-oxidation and no rust, wear-resistant and more durable 8. Expansion interface, you can listen to music and talk, earphone and microphone are used separately 9. The fine-woven cotton mesh body is used, which is resistant to pulling and not easy to break, and is durable