Boss is often one of the first brands that comes to mind when guitarists think about chromatic tuning pedals. Now, the tech and usability of the TU-3 has been packaged into an even smaller and more pedalboard-friendly enclosure for those players with even less room to spare. Refusing to compromise on functionality, the only sacrifice TU-3S users have to make is with the footswitch, which this smaller unit doesn't include. Otherwise, the display and tuning functions remain the same from pedal to pedal. Same Day Shipping when ordered Before 5pm