It is a USB external sound card that adds virtual 7.1 surround sound and a microphone input through a simple plug-and-play adapter.
The device typically features 3.5mm ports for both headphones and a microphone, allowing users to bypass a computer's built-in audio jacks.
It is compatible with various operating systems, including Windows, macOS, and Linux.
The adapter can turn stereo speakers or earphones into a 7.1 channel environment using sound simulation software.