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JLAB Obsidian Black J4M-BLK-FFP 3.5mm Connector JBuds J4M Rugged Metal In-Ear Earbuds Style Headphones with Mic and Travel Case

  • 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-BLK-FFP




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

General SPEC

Obsidian Black
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

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

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  • Mitchell S.
  • 2/11/2014 8:38:59 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsMight be nice ear buds

Pros: Right one sounds good ,fits good, and they feel durable.

Cons: The left one won't create a seal properly in either of my ears with any of the 14 tips.

Other Thoughts: They would probably be nice if I could get both of them to properly fit.

1 out of 1 people found this review helpful. Did you? Yes No

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