This document is the user manual for the Evolution eKeys keyboard. It mentions that modifications not authorized by the manufacturer may void the user's authority to operate the device. The equipment has been tested and found to comply with the limits for a Class B digital device according to Part 15 of the FCC Rules, providing reasonable protection against harmful interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If the equipment does cause harmful interference to radio or television reception, the user is encouraged to try to correct the interference by reorienting or relocating the receiving antenna, increasing the separation between the equipment and receiver, connecting the equipment to a different circuit outlet than the receiver, or consulting the dealer or an experienced radio/TV technician.