Tork Booster Mini Amplifier (Headphone Amp)
The Tork Booster is a handy stereo headphone/earphone amplifier designed to amplify and distribute a stereo level audio signal to headphones. It is the perfect addition to expand the output of MP3 /IPOD Players and portable CD Players while using helmet speakers.  The TORK BOOSTER offers over 200% gain! Connect it to your device and plug in the speakers.