Ebay audio amplifier

[beartruck]

Hello, Is there an inexpensive audio amp that I can use to increase the output of an mp3 player a small amount?

 

[anwaypasible]

there are dozens of headphone amplifiers on ebay.

however, not all of them use the ability to run off a battery.

 

[jdog2pt0]

http://cgi.ebay.com/FiiO-E3-Earphone-Headphone-Amlifier-Amp-Mp3-Mp4-Player-/160443584761?pt=Other_MP3_Player_Accessories&hash=item255b2ed0f9

Doesn't look like there is any volume control, but it is cheap.

http://cgi.ebay.com/Plantronics-Vista-M12-Headset-Amplifier-Amp-/330540069516?pt=Headsets&hash=item4cf5b9328c

Looks like it does have volume control