This is the very popular 2.4GHz XBee module from Digi. These modules take the 802.15.4 stack (the basis for Zigbee) and wrap it into a simple to use serial command set. These 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. Note: If you are using these outside of Canada/US, please check with your local laws regarding radio communication. Note: If you want to using Zigbee protocol, please select a Zigbee radio instead.Features: 3.3V @ 50mA 250kbps Max data rate 1mW output (+0dBm) 300ft (100m) range Wire antenna Fully FCC certified 6 10-bit ADC input pins 8 digital IO pins 128-bit encryption Local or over-air configuration AT or API command set Documents: Comparison Chart To program the Xbee, you can use X-CTU.