1. Plug, signal transmission is good. 2. Galvanized oxygen-free copper shielding, reducing losses, eliminating interference, and improving sound quality. 3. Environmentally friendly PVC, nylon woven jacket, good flexibility, good tensile properties and durability. 4. After more than 15,000 bending life tests, the double braided nylon body prevents tangling and adds another layer of durability for a long service life. 5. Wide compatibility, compatible with audio/laptop/headset/mobile/MP3 etc.Specification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 15.8cm * 11cm * 1cm / 6.22inch * 4.33inch * 0.39inch Qty per Carton 240 Carton Weight 7.40kgs / 16.31lb Carton Size 42cm * 35cm * 34cm / 16.54inch * 13.78inch * 13.39inch Loading Container 20GP: 533 cartons * 240 pcs = 127920 pcs 40HQ: 1238 cartons * 240 pcs = 297120 pcs