The Fender Acoustasonic™ 15 Acoustic Guitar Amplifier is about as portable as an amp can get. The amp may be physically little but it produces an impressive amount of sound. What amounts to a mini PA System, the Acoustasonic 15 can handle a Mic and your Guitar at the same time. Like, I mentioned, a Mini Public Address System, from your friends at Fender!
Check out these dimensions...
Weighs 10.5 lbs
Some of us play electric guitars that weigh more than this thing does! Perfect for quiet gigs, restaurants, churches, really any venue where you aren't the main attraction. Plus, your boss for the night will love how considerate you are regarding space and volume.
Even perfect as just a small PA for speaking outside or at work meetings. A small, portable, potently powered, 11 lbs work-horse designed from the ground up to be exceedingly functional. What a concept!