Godlyke GH-1 Power-All Electric Guitar Ground Isolator Avoid ground loops, reduce line noise, and finally be able to power pedals with opposing ground configurations off the same series power supply Allows positive-ground pedals to work in conjunction with standard negative-ground pedals off the same power supply Can reduce noise from certain digital units with multiple ground planes when all your pedals from a single power supply like the Godlyke Power-All PA-9 Touring musicians save time, effort, space, AND MONEY (airline luggage weight charges), by eliminating the need for multiple wall wart power supplies for your effects pedals Reduces cable clutter especially when performing on stage