The F998 Sound Card is a compact, portable audio interface for live streaming, podcasting, and gaming, offering multi-platform compatibility (PC, phone), built-in rechargeable battery, and Bluetooth; it features knobs for bass, mid, treble, echo, and volume, plus one-touch noise reduction, original sound elimination, and numerous DJ/voice-changer effects (like robot, goddess, karaoke modes) for interactive and enhanced audio on the go