The Control pad 683 is versatile, 24-keyprogrammable keypad. The keys are relegendable, allowing the user to label them to fit a specific need. The internal FLASH memory allows the keypad to connect to most PCs regardless of the OS without installing resident software. The keypad is easy to program using the Windows compatible software provided. Assembled with high quality Cherry key switches, the keys are durable, yet light and easy to press-a feature lacking on lesser quality keypads.