Macally's low-priced iKey30 iPad keyboard foregoes a Bluetooth connection in favor of a dock-connector cable. This is in some ways less convenient than a wireless connection, but it has its own advantages.
Quoted from Review: 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?"