We're just going to keep telling everyone the "s" stands for "Snub-nosed" until BOSS tells us different. The Boss TU-3S chromatic tuner pedal takes everything you love about the popular TU-W and scales it down in size by eliminating its pedal switch. Beyond that, you get the same rock-solid tuning and innovative features that you've come to expect from the TU-3, such as an easy-to-read LED display and various tuning modes. Chromatic mode is ideal for tuning by note name, while Guitar/Bass tunes by string number - even for 7-string guitars and 6-string basses. Guitar Flat mode is tailor-made for Drop tunings. Always on and ready to go, the Boss TU-3S is a pedalboard necessity! • MFSKU TU-3s • UPC 761294508978