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! On board PA and LNA make it transmit over 1km easily.

Specification:

• 1.8Km transmission Range
• +22dBm Max transmitting power
• SMA Right Male Connector
• -40 ~ +85 Centigrade working temperature
• Pins broken out : VCC, CE, CSN, SCK, MOSI, MISO, IRQ, GND (5V tolerant input pin)
• 1.9V~3.6V power supply
• Standard 0.1" (2.54mm) spacing pins