The RFM73 is a low-power, high-speed GFSK transceiver module specifically operating in the world-wide ISM frequency band of 2400 to 2483.5MHz. The module features very low power consumption, small size, high stability and good consistency. It is compliant with the specifications regulated and required by FCC and ETSI.

Carrier Frequency: 2.4 to 2.4835GHz ISM-Band, up to 83 channels
Modulation: GFSK
RF Power output: up to +5dBm
Receiver sensitivity: -88dBm @ 1Mbps
OTA Data rate: 250kbps, 1Mbps or 2Mbps
Data buffering, burst data transmission, auto re-transmission and auto acknowledge
Embedded packet processing engine
6 x data pipes for 1:6 star networks
Host communication: serial SPI @ 8Mbps
PCB antenna
Operating temperature range: -40 to +85°C
Power supply: +1.9V to +3.6Vdc
Board format: SMD
Dimensions: 16.8 x 12.8 x 3mm
Applications: Wireless PC peripherals, Wireless mice and keyboards, Wireless gamepads, Wireless audio, VOIP and wireless headsets , Remote controls, Consumer electronics, Home automation, Toys, Personal health and entertainment , Local communication for the Internet of Things (IoT)

Wireless Modules - HopeRF