The ATR2XUSB 3.5mm to USB Audio Adapter from Audio-Technica is designed to turn any headphone, microphone, or headset with a 3.5mm plug into a USB-compatible device. This adapter is equipped with microphone and headphone inputs, a mute button, volume control, and LED's showing power and mute status. It features USB 2.0 full-speed operation and provides plug-in power for microphones that need power.