It uses hardware that comes of the shelf, uses a packaged application, does not expose bits and pieces to the end user, just works with all the applications that use the standard on-screen keyboard - and finally: it may just help you doing something more efficiently or comfortably.
The entire keyboard is ultra thin apart from the cylindrical battery compartment (above), which also serves to raise the top end of the keyboard so that it lays at a comfortable typing angle. A metal plug unscrews from the left end of the battery compartment (below top) with a coin or the edge of a key. Drop in the batteries as indicated (below bottom) and it screws back into place and locks into position. There's a power button on the opposite end of the battery compartment (below) for turning the keyboard off in order to save your batteries while it's not in use.
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