The Music Masters Discount Electronics MORE! You are looking at... Item: Universal AC to DC Power Supply Wall Plug Adapter 3V 4.5V 6V 7.5V 9V 12V 300mA Condition: New Factory Specifications: Universal AC to DC Power Adapter AC Input 110V/220V Switchable 6 Selectable DC Voltage Outputs 3V to 12V Polarity (+/-) Switch 6 Different Size Power Plugs Plug Sizes: 5.5mm x 2.5mm, 3.5mm x 1.35mm, 5.0mm x 2.10mm, 3.5mm, 5.5mm x 1.5mm, 3.0mm x 1.00mm 300mA Power Output 4ft Cord Comments: This is an inexpensive accessory that can save lots of money on many battery operated items with an AUX power jack. Just select the proper voltage and polarity for your item and it will run on household electrical current. There's 6 popular power connectors including the newest plugs that fit a variety of items. This will deliver up to 300mA of continuous output. Make sure that whatever you are connecting this to doesn't require more current. If so get a larger adapter. We have also used this for various applications by cutting the plug off and installing our own connector. That comes in handy when replacing an old adapter that's no good but still has the plug. For safety precautions make sure you know what you're doing if you go this route. The price is right and it's something that pays for itself over and over. With our fast and free shipping it's a good deal. If it doesn't work or fit your needs we are always happy to take it back! Important note: Adapters like this are usually used to replace standard batteries (AA, AAA, C, D, 9V, etc) in items when there is an available power port. It requires a load to operate and deliver the proper voltage. It is NOT a charger similar to what you use with your cell phone. It is not regulated and will not charge batteries. It is important to set the voltage and polarity BEFORE plugging it in! Do not change the voltage or polarity while plugged in. Thanks for checking out one of our items! Please take the time to look at everything we have up for sale and check back often. You never know what you will find. We can best be described as an "old school" stereo shop and electronics store with a modern twist. We always guarantee your satisfaction and promptly take care of our customers. Shipping Handling for this item is FREE everywhere in the United States. For international not listed, contact us for approval and a shipping quote before making your purchase. Thanks again for looking and as always your business is appreciated!