With the AudioQuest Jitterbug passive usb filter you polish your music. Laptops, smartphones and other electronic equipment generate a large amount of noise and pollution in the sound transmission. Noise and interference cause jitter and packet errors, causing the sound to distort. It has a negative influence on the heat, the contrast and the resolution of music. The Jitterbug makes short work of this. The passive usb filter reduces unwanted noise and resonances. This makes your music sound warmer and more detailed.