Three-hole output, with two-in-one headset and separate headphone jack, can support two people to use simultaneously.
The external volume adjustment knob can freely adjust the volume, add headphone/microphone mute switch button, easy to use.
Upgraded round cable to make it easier to plug and bend, not easy to twist and break, long service life.
Support TRS and TRRS modes, compatible with most headphones, can convert the output analog signal of tablet, notebook, desktop, audio to digital signal output.
Driver-free design, support Windows/ OS/Linux and other operating systems, no driver required, plug and play.