Description :

The SparkFun RFM69 Breakout is a small piece of technology that breaks out all the pins available on the RFM69HCW module and makes the transceiver easy to use.
The RFM69HCW is an inexpensive and versatile radio module that operates in the unlicensed ISM (Industry, Science and Medicine) radio band, perfect for building inexpensive short-range wireless networks of sensors and actuators for home automation, citizen science and more.
It operates on the 915MHz frequency and is capable of transmitting at up to 100mW and up to 300kbps.
The transmit power and data rate can be changed to fit the application, it supports up to 256 networks of 255 nodes per network, features AES encryption to keep the data private, and transmits data packets up to 66 bytes long.
SparkFun sells two versions of the RFM69HCW: this 915MHz version and a 434MHz version, which are for use in different areas.

Features:

Transmit power: -18dBm (0.016mW) to 20dBm (100mW) in 1dBm steps
Receive sensitivity: down to -120dBm at 1.2kbps
Modulation types: FSK GFSK MSK GMSK OOK
Bit rates (FSK): 1.2kbps to 300kbps
Voltage range: 1.8V to 3.6V
Current consumption: 0.1uA sleep, 1.25mA standby, 16mA receive, 130mA transmit (max)
Encryption: AES 128-bit (optional)
Packet buffer (FIFO): 66 bytes
0.8" x 1.1"