---
product_id: 327018865
title: "Jitterbug FMJ USB Data & Power Noise Filter"
brand: "audioquest"
price: "R$1861"
currency: BRL
in_stock: true
reviews_count: 6
category: "Audio Quest"
url: https://www.desertcart.com.br/products/327018865-jitterbug-fmj-usb-data-and-power-noise-filter
store_origin: BR
region: Brazil
---

# Dual noise dissipation circuits RF-resistant USB output socket Full Metal Jacket shielding Jitterbug FMJ USB Data & Power Noise Filter

**Brand:** audioquest
**Price:** R$1861
**Availability:** ✅ In Stock

## Summary

> 🔊 Elevate your sound—ditch the jitters, embrace flawless audio!

## Quick Answers

- **What is this?** Jitterbug FMJ USB Data & Power Noise Filter by audioquest
- **How much does it cost?** R$1861 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/327018865-jitterbug-fmj-usb-data-and-power-noise-filter)

## Best For

- audioquest enthusiasts

## Why This Product

- Trusted audioquest brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Silence the Static:** Dual noise dissipation circuits slash internal RF noise for pristine audio clarity.
- • **Armor Up Your Audio:** Full Metal Jacket casing blocks external interference like a pro.
- • **Plug & Play Perfection:** Built-in RF-resistant USB socket ensures ultra-clean data and power flow.
- • **Certified Compatibility:** Meets all USB 2.0 specs for seamless integration with your gear.
- • **Audiophile-Approved Upgrade:** Transforms noisy car and home audio setups into crystal-clear soundscapes.

## Overview

The AudioQuest Jitterbug FMJ is a compact, high-performance USB noise filter featuring dual noise dissipation circuits and a full metal jacket shield. Designed to reduce radio frequency interference and package errors, it ensures cleaner audio transmission and meets USB 2.0 standards. Perfect for audiophiles and professionals seeking to eliminate digital noise in car and home audio systems.

## Description

AudioQuest - Jitterbug FMJ USB Data & Power Noise Filter. The AudioQuest brand guarantees respect for the highest standards during the production process, in order to ensure an excellent customer experience.

Review: The Jitter bug works ! - I got the jitters when I thought I needed two of them to sought out the digital jitters & errors in my AV equipments. What the heck you only live once to find out.. So I got two ! And voila it does some kinda magic that makes the music sound impeccable! Sure has stopped my jitters too !
Review: I was skeptical at first, lots of mixed emotions for these, but these absolute make a difference for car audio. It is likely that for home amplifiers these make minimal/not noticeable differences, but for car audio with lower quality components and lower quality amps, especially as vehicles usually have noise/hiss or ground loop issues, this has really helped my setup to sound need factory with an aftermarket android unit for my CLA45 AMG. For anybody else interested, I’m running a 12” Android head unit from AliExpress - had hissing/high pitch interference - i have installed this jitterbug for the Aux to USB converter that is provided to get audio for NTG 5.0 systems, along with a Aux to Aux ground loop isolator and some ferrite filters along the cables - and damn! This setup has made the audio quality near perfect!! (I also tested the same setup without the JitterBug, and you can still hear very minor hissing/high pitch at high volume without this plugged in…. The jitterbug has cleaned this up for me!! Very happy i found this!!

## Features

- Discrete dual noise dissipation circuits reduce internally generated radio frequency noise to improve audio transmission performance
- Reduces package fluctuations and errors
- Full Metal Jacket protects against external noise
- Built-in radiofrequency-resistant USB output socket offers greater noise reduction
- Meets all USB 2.0 specifications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08YDFH63B |
| Best Sellers Rank | #15,700 in Electronics ( See Top 100 in Electronics ) #6 in Car Amplifier Noise Filters |
| Item model number | JITTERBUGFMJ |
| Manufacturer | AudioQuest |
| Product Dimensions | 2.01 x 3 x 5.99 cm; 82 g |

## Product Details

- **Brand:** AudioQuest
- **Cable type:** USB
- **Compatible devices:** Personal Computer
- **Connector type:** USB Type A
- **Special features:** Data Transfer

## Images

![Jitterbug FMJ USB Data & Power Noise Filter - Image 1](https://m.media-amazon.com/images/I/510vcjVP-PL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is it worth upgrading from the original jitterbug to the fmj?**
A: I certainly wouldn't say you shouldn't upgrade, but if there's a difference in sound quality, it's so subtle that my ears can't detect it.

**Q: I am using df red on my cell phone.  would this improve sound quality of cell phone as a source, or is is mainly for reducing noisier pc sources?**
A: I have the blue and it works great with my cell phone.  Add some high quality noise cancelling headphones and you'll have a high end quality listening experience.

**Q: Can the jitterbug be plugged to my bluray player usb port and improve my listening experience when I watch movies. I have a nice home theater set up.**
A: If your USB on the DVD is a USB standard port then yes it will function. As far as improving your sound, the only thing that this thing does, as far as I know, is filter noise between devices. If your thing that needs improvement is a noise issue then this could help. If you have other issues you are trying to improve then this product is not likely to do anything for you.

**Q: i have a cb radio on my motorcycle and get interferance when transmitting. will this help reduce this noise**
A: i would say no. interference on your cb is most likely from the ignition system on your bike. make sure you have resister sparkplug wires and resister spark plugs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Jitter bug works !
*by R***. on 8 December 2025*

I got the jitters when I thought I needed two of them to sought out the digital jitters & errors in my AV equipments. What the heck you only live once to find out.. So I got two ! And voila it does some kinda magic that makes the music sound impeccable! Sure has stopped my jitters too !

### ⭐⭐⭐⭐⭐ Review
*by L***G on 9 February 2024*

I was skeptical at first, lots of mixed emotions for these, but these absolute make a difference for car audio. It is likely that for home amplifiers these make minimal/not noticeable differences, but for car audio with lower quality components and lower quality amps, especially as vehicles usually have noise/hiss or ground loop issues, this has really helped my setup to sound need factory with an aftermarket android unit for my CLA45 AMG. For anybody else interested, I’m running a 12” Android head unit from AliExpress - had hissing/high pitch interference - i have installed this jitterbug for the Aux to USB converter that is provided to get audio for NTG 5.0 systems, along with a Aux to Aux ground loop isolator and some ferrite filters along the cables - and damn! This setup has made the audio quality near perfect!! (I also tested the same setup without the JitterBug, and you can still hear very minor hissing/high pitch at high volume without this plugged in…. The jitterbug has cleaned this up for me!! Very happy i found this!!

### ⭐⭐⭐⭐⭐ Review
*by M***Y on 20 June 2024*

I am 60 years old and have been an audiophile for 50. Always trying to improve the sound quality of my audio system. Although I never went crazy and purchased audio equipment in the 10K+ range, I have heard many hours of what expensive audio sounds like. I have found most of it out there is snake oil, but every once in a decade or so, you find a diamond worth it’s value. The JitterBug FMJ is a diamond, not snake oil. It really works. I’d actually pay 10x its value for what it does. It improved the sound of my digital music 25%-50%, along with an AudioQuest (Cinnamon) USB cable, a computer/music server, a DAC with a Saber chip and a Vac-Tube Amp. I have yet to compare headphone sound quality. Everything musical has: more stereo separation, clarity and imaging detail along all frequencies more realistic and open sounding (out of the speaker box sound) a little more soundstage (surrounding sound outside the speaker edges) most all Music Genres sounds more balanced and open Musical Instruments will have: more analog sounding realism, while still retaining its digital sharpness less digital jitter and muddiness (its most noticeable feature) string vibration- can be heard more (guitar, piano) percussion- is clearer and stands out more voices- have more authentic raspiness and realism Synthesized Waveforms- you will hear more- wobble during smooth wavy sequences graininess during distorted sequences You will also get Black as Pitch quite parts, with zero background noise. Your music collection will sound noticeably different…better.

## Frequently Bought Together

- AudioQuest JitterBug - FMJ USB Data & Power Noise Filter
- AudioQuest Dragonfly Cobalt USB Digital-to-Analog Converter
- AudioQuest DragonTail USB-A > USB-C High-Performance USB-A (Female) to USB-C (Male) Extender

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-14*