This module uses the newest 2.4GHz transceiver from Nordic Semiconductor, the nRF24L01+. This transceiver IC operates in the 2.4GHz ISM band and is low cost.
The nRF24L01 integrates a complete 2.4GHz RF transceiver, RF synthesizer, and base band logic supporting a high-speed SPI interface for the application controller. No external loop filter, resonators, or VCO varactor diodes are required .
Transceiver IC Nordic's nRF24L01+
Operating Voltage: 1.9V to 3.6V (Recommend VCC is 3.3V)
Transmission range : 100 meters outdoor and around 30 meters indoor at 1 Mbps.
Transission rate: upto 2Mbit/s
Programmable output power: 0, -6, -12 or -18dBm
Current Consumption: 11.3mA at 0dBm output power / 13.5mA RX at 2Mbps air data rate
Power-down mode current: 900nA / 26μA in standby
Easy to be connected with low cost MCU
Although the power source required is 3.3v ,the signal levels of module is 5V tolerant input. No need for level conversion for 5V MCUs
Arduino Demo Link