Boss - 'TU-3W' Chromatic Tuner Guitar Pedal

Boss TU-3W Waza Floor Tuner, Ground Pedal, A TU-3 in WAZA version with perfect pitch recognition and a high-quality signal buffer, Optimized audio circuits for an uncoloured signal propagation, The buffer can be disabled, LED meter with 21 segments and adjustable brightness, High brightness mode, "Accu-PitchSign" function, Tuning modes: chromatic, guitar, bass, 7-string guitar, 6-string bass and drop tuning (up to - 6 semitones), Accuracy: + / - 1 cent, Reference tone adjustable from 436 to 445 Hz, DC out jack for powering additional pedals, Dimensions (W x D x H): 73 x 129 x 59 mm, Power supply with 9 V battery or via 9 V DC power supply (coaxial connection - negative pole inside, suitable power supply not included: #409939#)