The StroboStomp VS-S is one of the most accurate pedal tuners ever made — Peterson's strobe technology reads to 0.1 cent accuracy, putting it in a completely different league from standard chromatic tuners. If you're setting intonation, doing a setup, or just want your guitar truly in tune, this is the tool for it. True bypass, bright LCD display, and runs on 9V. In very good condition with no major cosmetic concerns. No box.