The active area of the DX1 measures just over 9 1/2" x 6 1/2". A series of removable keys are then situated within that area, anywhere you want. Each key has its ID number on it, letting you know which key is what in the configuration software. The DX1 comes standard with 25 keys, numbers 1 - 25 obviously, while a set of keys numbered 26 - 50 are available for purchase separately, giving you up to 50 configurable keys for any one setup reports IGN. The keys have an adhesive surface, once attached, they're set in place pretty firmly. The instructions say that to clean the keys you should just use a moist towel and wipe them clean.

Products
	DX1 INPUT SYSTEM The DX1 Input System includes a Pad, a removable Tray, 25 numbered Keys with a storage tray, preprinted labels, an installation CD and a Quick Start Guide.
	THE DX1 PAD The Pad connects to the computer via a USB cable. The pad contains two buttons. The button next to the Ergodex icon brings up the software at a single touch. The second button is a Record Button, which allows Macros to be assigned to Ergodex Keys.
	THE DX1 TRAY The removable Tray provides a surface for the placement of the Keys. The Tray is washable. And because it is clear, templates or skins can be placed beneath it to suggest key placement.
	THE DX1 KEYS Each DX1 System comes with 25 numbered Keys. The Keys have an adhesive surface that allows them to be firmly attached to the Tray. Although the adhesive surface provides a strong bond, Keys can be moved by twisting them. If the adhesive surface becomes dirty it can be cleaned with a damp cloth.
	Because Keys can be moved, you can design input configurations to match unique geometry of your hand. In addition, Keys can be arranged in functional clusters or “logical neighborhoods.”
	Keys can be assigned single or multi key Macros. DX1 Keys can be assigned blocks of text and can also launch web sites.
	PRE-PRINTED LABELS A set of pre-printed labels comes with every DX1 Input System. Also included is an installation CD which contains the software to power the DX1 Input System.