Essager EZJK USB to 3.5mm Jack Audio Aux AdapterUsage Ideal to connect a 3.5mm headset/microphone/speaker to PC via USB interfaceFunction Support stereo sound listening + speaking, dual functionsHigh Fidelity Sound: It adopts an advanced smart chip, offer high-definition audio, you can get higher fidelity sound from itPremium Material: Made of quality aluminum alloy shell, it is more durable to useEasy to Carry: Due to its portable and lightweight design, easy to put into your pocket for storage and carryingPlug and Play: No need to install software, drive, or complex connection mode, just plug and play. Let you use the simplest way to enjoy wonderful music anywhere