This module uses the newest 2.4GHz transceiver from Nordic Semiconductor, the nRF24L01+. This transceiver IC operates in the 2.4GHz band and has many new features! Take all the coolness of the nRF2401A and add some extra pipelines, buffers, and an auto-retransmit feature - very nice! Please note: We now populate these boards with the nRF24L01+. The '+' version of the IC has improved range, sensitivity, and data rates. The command set is backward compatible with the original nRF24L01. Project description, more information and ordering can be found at https://www.sparkfun.com/products/691 Nordic VLSI website: http://www.nvlsi.no/ nRF24L01 Datasheet: http://www.sparkfun.com/datasheets/Wireless/Nordic/nRF24L01P_Product_Specification_1_0.pdf Great Nordic tutorials: http://www.diyembedded.com/ mbed Example: http://mbed.org/cookbook/nRF24L01-wireless-transceiver Example PIC Code: http://www.sparkfun.com/datasheets/RF/nRF24L01-Example-Code.zip