Unlike Bluetooth keyboards, the iKey30 doesn't require batteries — it gets power from your iPad's dock-connector port.
Quoted from iKey30 Wired iPad Keyboard Offers Unique Features on ipad 3 features – Yahoo! News Search Results
Apple MFI Certified 8-pin iPad Wired Keyboard Lightning Connector for iPad 4, Air, Air 2, Mini, Mini with Retina, and Mini 3. Great for PARCC and Smarter One of the most common questions I receive from people who have become electrically sensitive is "How can I use a computer without increasing my symptoms?"