The Boostaroo GPS Amplifier provides four times more volume, with greater audio clarity. Road and motorcycle noise won't be a problem when you use our GPS amplifier.
Our GPS amplifier is small, light weight, and will easily install to your motorcycle or car. Simply plug the amplifier into the audio-out of your GPS, then plug the output of the amplifier into your helmet, speakers, or the (aux) audio input of your car or motorcycle stereo.
"I purchased you amplifier for my Harley Softtail. I was looking for a small concealable amp to boost the output of my GPS . What a product! I can listen with ear plugs at less then half volume. I will be getting another one to boost my GPS before the aux input on my other Harley Ultra Classic." ~ Bill L.
GPS Audio Amplifier - Garmin Zumo Amplifier - Increase GPS Volume