Korpa 
JOYO Audio delivers a compact and convenient way to combine the essential tools of the guitarists pedalboard that do not necessarily make a sound, but enable it to all happen. That is the Power tune that combines both power supply and tuner into one amazing product, saving space and eliminating noise.
The POWER section features a filtered low noise output with short circuit and over current protection. Six outputs give you the standard 100ma power for most of your standard analogue pedals on your board, whilst two additional outputs can deliver a whopping 500ma, which will cover even the most demanding digital effects units.
The TUNE section delivers via the large LED screen, which is easy to see in any lighting condition. Using a technologically impressive rapid chromatic tuning algorithm, ensuring fast and responsive note detection for any guitar or bass player. Of course you can use the Power Tune independently, the tuner section features True Bypass circuit to minimise signal loss.
