A000007 Shield Xbee,Zigbee Shield for the Arduino Board

The Zigbee module is the NEW Maxstream Series 2 XBee™ ZigBee OEM RF Module with on board chip antenna, up to 100m distance transmission . 

Board comes fully assembled and tested (without Arduino board) 

http://www.arduino.cc/en/uploads/Main/XbeeShieldSchematic.pdf