CC1101 RF Radio Module
It is a radio module (receiver and transmitter) operating in the 433 MHz frequency range with an SPI communication interface. It is powered by a voltage of 1.9 V - 3.6 V. An external antenna is soldered to the device. Signals are displayed on gold pin connectors at a 1.27 mm spacing. CC1101 is a low-cost, 1 GHz transceiver designed for very low power wireless applications. The circuit is primarily designed for ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency bands at 315, 433, 868, and 915 MHz, but can be easily programmed to operate at other frequencies in the 300-348 MHz range, such as 387-464 MHz and 779-928 MHz bands.

Dimensions: 23mmx16mm
Supply voltage: 1.9V - 3.6V
Communication: SPI Interface
Antenna: 20mm
Maximum operating speed: 500kbps, supports 2-FSK, GFSK, and MSK modulation.
Baud rate, power, frequency, and other related parameters can be changed via software.
High sensitivity
CRC error detection and internal hardware address multi-point communication control
Low current consumption (RX, 15.6mA; 2.4kbps, 433MHz) [T

WAVESHARE