Jitter Bug is a USB (Universal Serial Bus) data & power noise filter. Dual discreet noise dissipation circuits reduce the noise of ringing that are common in both the data & power lines of USB (Universal Serial Bus) ports. The Jitterbug will measurably reduce jitter & packet errors & improve dynamic contrast warmth & resolution. All computing devices be it a laptop or NAS drive inherently generate a significant amount of noise & parasitic resonances. Computers also contribute RFI & EMI pollution on to the signal paths. These easily find there way to your USB (Universal Serial Bus) cables & into your audio system. Jitter Bugs dual-circuitry measurably reduces unwanted noise currents & parasitic resonances. It also reduces jitter & packet errors (in some cases packet errors are completely eliminated). The Result is a clearer & more compelling sound.