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JLab JBuds J4M Heavy Bass Metal In-Ear Earbuds Style Headphones with Travel Case (Gun Metal)

  • Dynamic soundstage with crystal clear highs, deep, full mids, and tight, punchy bass
  • Includes 7 sizes of soft silicone ear buds for a super comfortable, noise isolating fit, and a rugged travel case
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Learn more about the JLab Audio, Inc. J4M-SLV-FFP




Power Supply
Normal Input: 1mW
Max. Power: 3mW

General SPEC

Driver Unit
Frequency Response
Input Impedance
16 ohms
88dB+/-5dB at 1kHz,input 1mW(0.126V)
Cord Length
100+/- 5cm


Extra rugged build with aluminum housing, flexible exoskeleton armor on all components, and Kevlar reinforced tangle free flat cable.

Rich, dynamic soundstage with crystal clear highs, deep, full mids, and tight, punchy bass

Includes 7 sizes of soft silicone ear buds for a super comfortable, noise isolating fit, and a rugged travel case.

Works with every iPod, iTouch, iPhone 3G/4G, Kindle, iPad, mp3 player, CD, portable DVD, PSP, Nintendo DS, and Laptop.

Inline microphone and track control

Gold plated 3.5 mm audio jack for premium, no-loss sound connection to your audio device.

Ear Cushion: Silicone

Cord Material: Flat Kevlar reinforced TPU

Cord diameter: Dia. 1.8 +/- 0.1mm to 1.35 +/- 0.05 X2mm

Channel Balance: <5% at 1mW 1KHZ


- Smartphones: iPhone, Android, HTC, Windows, Blackberry, and most other smartphones
- Tablets: Kindle Fire, iPad, Motorola Zoom, HP Touchpad, Asus EEE Pad, Acer Iconia, Toshiba Thrive, Coby Kyros, Viewsonic, Sony, Blackberry Playbook, Vizio, Archos, Android, Dell, T-Mobile, as well as tablets with VOIP apps, including Skype.
- MP3 players: All iPods, Sansa, Sandisk, Coby, Archos, Sony, Creative, Sylvania, and others.
- e-Readers: Kindle and others
- Gaming Systems, Leapfrog and other portable devices
- Computers: All laptops, notebooks, and desktops

*JBuds are compatible with any portable devices with a standard 3.5 mm jack. Please check your device specifications or manufacturer for any further compatibility details.

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the JLab Audio, Inc. J4M-SLV-FFP

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  • Tommy H.
  • 6/8/2014 9:44:52 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsFor me, it didn't work out

Pros: Treble is nice, mic is great when it works

Cons: Mines broke exactly 2 months of ownership and light use, the side that is connected to the call button works but the other side you cannot hear anything, one ear works.

A little disappointed because I spent more than usual on earphones with a mic.

Bass is lacking too but didn't really get it for the sound, only for the mic but now only one ear works.

Other Thoughts: 2nd Jbud I've owned

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