This product is Discontinued Now. We recommend those Xbee / Zigbee Modules products as a suitable replacement and hope you will find what you are interested in.
This is the very popular 2.4GHz XBee module from Digi (formally Maxstream). These xbee modules take the 802.15.4 stack (the basis for Zigbee) and wrap it into a simple to use serial command set. These xbee modules allow a very reliable and simple communication between microcontrollers, computers, systems, really anything with a serial port! Point to point and multi-point networks are supported.
Pair a couple of these XBees modules with a Regulated Explorer, and a USB Explorer and you've got a great gift for that special electronics geek!