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FiiO E02i Rocky - Silver

Metal Shell Portable Headphone Amplifier with Rechargeable Battery

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List price $39.99

$27.99

with warranty

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General Features:

  • Metal Shell Portable Headphone Amplifier
  • Get enhanced audio output from an iPhone, along with switchable bass boost
  • In-line controls for music and phone calls for iPhone
  • Built in lithium ion battery lasts for up to 10 hours of normal use
  • Aluminum shell fully shields external interference to prevent noise
  • High sensitivity microphone is designed for clear conversation and low noise
  • Main Color: Silver
  • Also Available In: Black
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Product Specifications

  • Frequency Response: 20-20,000 Hz
  • Headphone impedance range: 16-150 ohms
  • Cable Length: 800mm
  • Power Supply: USB 5V/500mA
  • Output power: >70 mW

Headphone Amplifier Specifications

Amplifier Style
Some headphone amplifiers are designed to be portable and others are meant to be placed on a desk. This will tell you what style of amplifier this item is.
Portable
Digital-to-Analog Converter (DAC)
A Digital-to-Analog converter (also known as a DAC) converts a digital audio signal into an analog signal. This is especially helpful for listen to music from digital sources, such as iPods and smart phones.
No
Frequency Response
The range of frequencies the amplifier will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
20 - 20000 Hz
Input Connection
This is the manner in which the headphone amplifiers receive an input audio signal.
3.5mm Mini-Jack
Output Power
This is the output wattage of the headphone amplifier. It is measured in mW.
70 mW

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
78%
4 Star
22%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
5.0
Features
4.4
Design
4.7
Usability
4.9

Dana

Shelbyville, Ky

Overall
Durability
Value
Features
Design
Usability

FiiO E02i Rocky- Silver

June 19, 2014

I would recommend this amplifier to anyone who needs just a little headset boost while cutting the grass. It boosts the sound from my iPhone just enough that I can listen to my music through headphones without blowing my eardrums out. It's a very nice unit, it is small enough to fit in your pocket or hang by the built in clip. It even has a bass boost on it. Well worth the money. Everything I had hoped for in a small amp for my iPhone.

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Greg

Crystal Lake, IL

Overall
Durability
Value
Features
Design
Usability

Excellent sound booster

April 28, 2014

I have an iPhone and am hard of hearing. Apple knows the iPhone isn't very loud, but has not done anything to boost the volume. The FiiO E2i Rocky allows me to make hands free calls that I couldn't hear before. It is the only amplifier of its kind that I could find, and much more economical than a Bluetooth headset. Battery lasts for weeks.

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GMax

Las Vegas NV

Overall
Durability
Value
Features
Design
Usability

FiiO E02i (Headphone Amplifier)

April 15, 2014

This simple amplification unit proved to be very good in it's quality and execution. It exceeded my expectations; not only with the use of my Galaxy S3, but also in my vehicle when hooked up to aux line! Highly recommend for an easy modification to boost your phone or car audio without too much hassle.

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NaTuRaL

Los Angeles

Overall
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Value
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Usability

Nice product~!

April 4, 2014

Overall rating of this product is excellent~! I love the functionality, portability, durability, better sound amplification, and the design is sleek and very seamless. Top notch, thank you for this product.

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wisker

Martinsburg Pa

Overall
Durability
Value
Features
Design
Usability

Nice little amp

March 21, 2014

I liked this little amp so much I gave the first one I bought to my wife and bought another. Since it is an in-line amp it is very easy to use. The clip to hold it on a shirt is a great idea. The sound is fantastic.

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zach

Canada

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Value
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fiio rocky

January 23, 2014

honestly, great product puts up the volume just enough for my vmoda 100 and the bass boosts is perfect ( for me all the time on bass boosts ) but when needing it the bass boosts is too nice . for the money you really can't go wrong buy this product . From a true hip hop head

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Jon

Blue Springs, MO

Overall
Durability
Value
Features
Design
Usability

Not a bad purchase

January 18, 2014

Got this little amp to boost the sound and bass on my V-Moda Crossfade headphones....definitely does that! Only has two settings though, bass on bass off. Wish it had a couple of sound options like some others. Overall a good simple amp for the money!

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DT

Rochester, NY

Overall
Durability
Value
Features
Design
Usability

Suprisingly good amp

November 28, 2013

I predominantly bought this item with the intent on using it with my cell phone in fielding calls off my desk without having to bring the phone to my ear. However, what I did not expect was the enhanced sound quality boost when I flipped the amp on this unit on. It adds a little improvement to the music listening experience if you are one of those types that listens as often as I do with my phone. Great solid build quality - highly recommend.

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Sam

Spring, tx

Overall
Durability
Value
Features
Design
Usability

Excellent product

October 10, 2013

Ive been looking for something that would put a little more oomph in my Bose SE2 sport earbuds used with an Ipod. I'd tried a non-powered amp and it didn't make much difference, but the FiiO Rocky E02i is just what i was looking for. Now I can use whatever equalizer setting I want without inhibiting so much of the sound, and it has made all the difference in my running enjoyment. Only worry - one of these days I'm going to get caught in the rain an I don't think the amp will survive. Oh well, next time I'll order two of them.

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Product Summary

Manufacturer

Model Number

E02i (Silver)

UPC

6953175710264

Weight

0.10lbs

Internal SKU

fiio-e02i-silver

Internal Product ID

63311

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: FiiO E02i Rocky - Silver