Specifications:

• The XBee Shield simplifies the task of interfacing an XBee with your Arduino. This board mates directly with an Arduino Pro or USB board, and equips it with wireless communication capabilities using the popular XBee module.
• This unit works with all XBee modules including the Series 1 and Series 2 (and 2.5), standard and Pro version.
• More Features
• Double shield interfaces compatible with Arduino for easy cascading
• Switchable of communication with FTDI-USB or Arduino with HardwareSerial or SoftwareSerial