Originally Posted by calclown Might be too expensive for what you want, but these are small and light and FULL of features. Metronome, beats, tuner, plus all kinds of effects. Need a small patch cable or adapter to plug into the guitar then you're set. I don't use mine much, but mostly cause I hate headphones. http://www.sweetwater.com/store/deta...FaGPPAodDFAAhw
I have seen these as low as $79 new at GC...