BRAND NEW SEALED AC POWER SUPPLY Adapter 9VDC 9V DC 350mA 60hz 1m UL listed. To receive the second one free all you're doing is paying for the increase in shipping, if you'd like only one you can pay a reduced shipping rate. This is a universal adapter can be used for many different things it was designed for wireless gaming systems. But this is a common adapter used many different applications such as,  handheld cordless phone bases, musical electronic instruments, tools, Halloween or Christmas decorations, charging flashlights, basically anything that runs on 9 volts DC and requires a low amperage of 350 milliamps or less this adapter can be utilized. Plug Outer dimensions 5.5 mm inner dimensions 2.5 mm. I have hundreds of these adapters in stock ready to ship don't miss out  there not going to last long. To get the second one free the shipping is a  higher cost, when you purchase please let me know if you want one adapter or two.. thank you for the purchase...