Description:

The FR-RFM-1 module is a complete 2.4GHz transceiver module with on board antenna. These modules are great for building many wireless applications: remote control, home automation, key fob and more

Highlights:

• Built In Antenna
• Powered by CR2032 battery (battery is not included) or 1.9 to 3.6VDC
•Low power mode
•Networking capability

Documentation:

RF Digital Data Sheet
Note: See RFDigital.com for the most up to date datasheet
FR-RFM-1 Schematic
Application Notes

Link