exactly what I've been looking for
This is the best passive AB box I've ever had (and I've had a few other brands that were disappointing--they were noisy & didn't hold up well over time). My professional opinion is that Boss makes the best pedals and stomp boxes (I also totally love the Boss Katana-100 amp I just got through Sweetwater). The size of the AB-2 is just right for me. I can keep 2 guitars plugged in with the ability to quickly & noiselessly switch them out within seconds. At the end of the night, I just unplug it and it tucks away perfectly into my pedal board. Finally, it only takes a single AA battery which lasts a long time as long as you remember to unplug your cables. If you're in need of an excellent AB box, this is the one to get, especially for the price.