The Double Sound Card Virtual 7.1 Channel USB 2.0 Audio Adapter is an external USB 2.0 sound card that provides virtual 7.1 channel audio and 3D sound. It supports Dual Microphone and Headset connections for flexible setups through a single device. Key features - Virtual 7.1 channel sound with 3D audio for gaming, movies, and music. - Dual Microphone and Headset support for multiple input and output options. - Compact external USB 2.0 design for easy placement on a desk or for travel. - External audio adapter that expands your system’s audio capabilities via USB 2.0. Practical use scenarios - PC gaming with teammates for clear voice chat and immersive sound cues. - Online meetings or VOIP calls using separate mic and headset channels. - Streaming or content creation with multiple audio sources and 7.1 virtual surround.