The epicenter for pedalboards inside a "heavy duty" metallic housing. Tuning mode: Fully chromatic tuner, 5 color. LED dispay, easy to read in darkness. Sensitive & fast, sound muted in tuning mode. Power supply mode: DC 18 V input, 6 x DC 9 V/100 mA output, 2 x DC 9 V/500 mA output, fully independent circuits, short circuit/ overcurrent protection. Noiseless switching. 18 V power supply (EU/US), 8 x DC power cable & 1 x polarity reversal cable included.