irock! 300w Owner'S Instruction Manual Download Page 2

300w Easy Setup Feature 

 

The steps you should follow are summarized below: 
 

 
1)

 

Pull the stereo jack from the plug in the back of the 

300w 

 

2)

 

Remove the battery cover from the back of the unit by gently pressing down the tab and 
pulling out.   

3)

 

Install 2 “AAA” batteries with the positive end facing down and replace battery cover 

4)

 

Plug the 3.5mm stereo cable into the audio out connector or the headphone jack of the 
audio source you wish to transmit.* 

5)

 

Select the frequency that you wish to transmit to with the selector on the side of the 

300w 

(88.1, 88.3, 88.5 or 88.7 MHz) 

6)

 

Press the POWER button on the front of the unit (LED will be lit up when powered 
properly) 

7)

 

Tune your FM stereo to the corresponding FM frequency as selected in step #5. 

8)

 

Adjust the volume on your audio player and stereo for maximum enjoyment. 

*Some audio sources output level is either too high or to low at the line-out jack.  If it is too high, the sound might be distorted.  If it is too low, 
the sound might be too noisy.  If this happens, connect the transmitter’s plug to the headphone jack and adjust the volume level on your audio 
device. 
 

Frequently Asked Questions about the irock!

 300w 

 

Q:  What is the 

300w? 

A:   The irock!

 

 

300w 

is the newest product offering from First International Digital

.

   The 

300w is

 a 

portable audio transmitter that connects to any audio source and broadcasts that audio to any radio or 
stereo within 10-30 feet.   

Q:  How can I achieve maximum performance and sound quality from my 

300w? 

A:  1) Maintain fresh batteries. 

2) Turn the 

300w 

off when not in use. 

3) Keep the 

300w 

within 10 feet of the radio that it is transmitting to. 

4) Keep the cord that connects the 

300w 

to the audio player straight/taut, positioning the player as far 

from the 

300w 

as possible. 

5) Before using the 

300w 

listen to 88.1, 88.3, 88.5, and 88.7 FM on your radio and use the frequency 

with the weakest radio station.  

Q:  Should I connect my 

300w

 to the Audio Output or Headphone Output of my player? 

A:  It depends on the output level of your source’s Audio Output.  If you are getting a distorted or noisy 
sound when connected to the Audio Output try connecting the 

300w 

to the Headphone Output and adjust 

the volume levels on your source and stereo for maximum enjoyment.  

Q:  When I press the power button the LED blinks on, then off, yet nothing works, how do I fix 
this? 
 

A:  The flickering on and off of the LED is a low battery indication.  Replace both “AAA”    batteries 

and continue normal use. 

 

Limited Warranty Information 

First International Digital (FID) warrants that the product enclosed herein to be free of defects for a 
period Ninety (90) Days from the date of purchase.  In the event of a defect in material or workmanship 
during the warranty period, FID, at its discretion, will repair or replace the defective product when the 
owner returns the defective product to FID.  The remedy for this breach of warranty is limited to servicing 
or replacement only and shall not cover any other damages and shall not cover any other damages, 
including but not limited to the loss of profit, special incidental, consequential, and other similar claims. 
In no event will FID be liable for any amount greater than the currently suggested retail price. 

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