· BATTERY-FREE PERFORMANCE – You won’t need to worry about dead batteries in your pedalboard ruining your performance when you use an AC-DC 9-Volt Power Adapter. You can ensure a consistent, battery-free performance when you directly power it.· VERSATILE - The adapter converts AC wall power to 9-Volt DC for powering most instrument pedals and other 9-volt battery devices. The D'Addario adapter can also be used to power tip-negative keyboards.· 500mA MAX CURRENT - The tip-negative, sleeve-positive power supply can deliver 500mA to fuel even your most power-hungry devices.· PRODUCT INFO - Input: 100-240VAC; Output: 9VDC, 500mA; Barrel size: 2.1mm; Polarity: Tip “-“; Cord Length: 72”; Available in NEMA, F plug and G plug types.· IN=OUT TECHNOLOGY – Exclusive In=Out Technology combines low capacitance and top-quality construction for a cable with the purest signal transparency and the longest life possible.· DURABLE, RELIABLE AND QUIET - Classic Series patch cables utilize ultra-pure, oxygen-free copper conductors for low capacitance and pure tone. With a single-molded strain relief plug these cables provide added durability and reliability. A 90% spiral shielding helps to eliminate virtually all handling noise.· PERFECT FOR PEDALBOARDS – Right-angle 1/4” plugs are an ideal fit for linking pedals together and assembling a pedalboard to your exact specifications. Create easy to work setups so you can focus on the music.· PRODUCT INFO – The 0.5’ (6”) stage and studio patch cable comes in a pack of three. It has 1/4 right-angle plugs. Right-angle cables also available in 1’ and 3’ lengths.