The Original Danelectro Zero Hum AC-DC Guitar Pedal Power Supply Adaptor DA-1 is a high-quality power supply designed specifically for guitarists and bass players who use multiple effects pedals. With a voltage output of 9V, this adaptor ensures that your pedals receive a stable and reliable power source without any hum or noise interference. The Danelectro brand is known for producing durable and reliable equipment, making this power supply a trusted choice for musicians looking to power their pedalboard efficiently and effectively.