RCRX-868 is a miniature, low-power, radio transceiver designed by Radiocontrolli for operation in the 868 MHz ISM band. It is designed for use in remote monitoring, wireless data transmission, and two-way communication applications. The transceiver has low power consumption and high sensitivity, making it suitable for applications that require long-range wireless communication. It also features an optional external antenna and an onboard MCU, making it configurable and easy to integrate into applications. The transceiver has a maximum data rate of 1.2 Kbps and supports various modulation techniques such as GFSK and OOK. Its peak power output is up to +10 dBm and it has a typical sensitivity level of -121 dBm. This transceiver can be used for various applications, such as remote monitoring, home automation, and long-range communication.