This product was replaced by a updated version XBee Shield V2.0 (SLD01103P).
A Xbee shield allows an Arduino board to communicate wirelessly using Zigbee. It is based on the Xbee module from MaxStream. The module can communicate up to 100 feet indoors or 300 feet outdoors (with line-of-sight). It can be used as a serial/USB replacement or you can put it into a command mode and configure it for a variety of broadcast and mesh networking options. The shields breaks out each of the Xbee's pins to a through-hole solder pad.
Want to know more about the soul of LinkIt ONE? MediaTek Labs provides LinkIt SDK for Arduino, with which you develop Sketches in Arduino IDE that you run on LinkIt ONE. There is a Developer’s Guide that will help you get started with the SDK and LinkIt APIs, as well as an online API reference. And when you come to taking your prototype towards deployment, there is a Hardware Reference Design package containing schematic, layout and datasheets to help you create your own product using Seeed Studio’s Fusion PCBA Service.