1. Support U disk, mobile hard disk, keyboard, mouse and other devices use 2. Earphone / microphone two-in-one, to solve the headset connected to the computer can not voice, sound card damage problems 3. Plug and play, compatible with multiple systems 4. Alloy shell material, delicate feel, wear-resistant 5. Miniature size, easy to carry, does not take up space 6. High-performance chip, safe and stable data transmission 7. Interface type: USB2.0 x 3/3.5mm audio port 8. USB rate: 480Mbps 9. Cable length: 6.9cm