MaxStream-an American company acquired in 2006 by Digi International Corporation, is the world's leading developer of wireless network devices. The company presents a full range of wireless solutions based on ZigBee®, WiMAX®, Wi-Fi® technology, including ZigBee® modules, stand-alone wireless modems and related tools. The XBee and XBee-PRO modules are completely interchangeable, which makes them ideal for any application using the ZigBee protocol.