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C46-5468-25 Rev B

The Andrea Mobile Noise Canceling Headset 
EDU-255M features, state-of-the-art, Noise 
Canceling microphone technology that 
removes background noise for optimal voice 
recognition. 

Users receive:
• Andrea microphone technology in a  
   high-fidelity headset

• A rigid wire boom which keeps the
   microphone accurately positioned in place

• Increased speed and accuracy of PC speech- 
 driven 

applications

• Cable module with earphone volume control

Connecting the EDU-255M

To connect the Andrea EDU-255M Mobile 
Headset to your device

1. Plug the black plug into your mobile device’s 
shared microphone/speaker port

COMPATIBILITY
The EDU-255M is compatible with most mobile 
devices such as smartphones, laptops, tablets 
and Computers with a single shared 
microphone/speaker port.

HEADSET INSTRUCTIONS

1. Fit the adjustable headband over your head  
 

to secure the headset with the speakers  

 

resting comfortably around your ears.

2. Adjust the microphone boom so that the  
 

microphone is approximately 3/4" in front

    of your mouth.

Package includes: One (1) EDU-255M Mobile 

Headset, and

One (1) EDU-255M Headset Publication

C46-5471-25 Rev B

WARRANTY INFORMATION

Please visit our website at: 

www.andreacommunications.com/warranty

for all warranty information.

Congratulations on your purchase 
of the Andrea Mobile Headset 
EDU-255M!

EDU-255M

Headset

TROUBLESHOOTING

If you encounter the following problems:

No sound from headset ear piece while
audio plays from computer.
 
A. Check all connections.
B. Consult your sound card instruction booklet.
C. Check output volume level adjustment in  
 software.

Microphone does not record sound when
using a voice-recording application.

A. Check all connections.
B. Bring the microphone closer to your mouth.
C. Check input control for proper level in  
 software.
D. Check that microphone is not muted in the
    PCs microphone audio panel.

TECHNICAL SERVICE

We hope that you enjoy your Andrea 
EDU-255M Headset. If you have additional 
questions, please visit our website at:
www.andreacommunications.com/support or 
call Andrea Communications Technical Service 
team at 1-800-442-7787 (USA & Canada) for 
assistance.

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