7.1 Surround USB External Sound Card for PC Gaming | DSP Audio Amplifier | Virtual Audio Adapter for Notebooks and Smartphones Without Battery | Plug and Play Computer Sound Enhancement Device

Enhanced with a 24-bit digital audio DSP processor, the sound volume is boosted by 15%. Includes sound effects for PUBG and League of Legends. Features a microphone mute function for easy control. USB compatible for pure digital sound output and virtual 7.1 channel sound. Plug and play USB interface, compatible with Windows and Mac OS.