1. 360-degree stereo surround, adding 6 vocal points on the basis of the regular 2.0 sound card, completing the virtual 7.1 surround channel; 2. Switch 7.1 channels with one button, eliminating unnecessary steps. When the blue light is on, switch 7.1 channels; 3. Ordinary headphones turn into a 7.1-channel music phone for clear music effects;
