This set of ceramic capacitors...
Sonoff RF switch is a Sonoff version with a 433MHz RF receiver module inside. This wireless switch can be used together with the RF remote controller, which enables you to control appliances in indoor environment. The remote control switch allows users remote turn on/off connected appliances via app EWeLink from anywhere in the world.
This is the Adafruit Feather 32u4 LoRa Radio (RFM9x). We call these RadioFruits, our take on an microcontroller with a "Long Range (LoRa)" packet radio transceiver with built in USB and battery charging.
This is the Adafruit Feather M0 RFM96 LoRa Radio (433 MHz). We call these RadioFruits, our take on an microcontroller with a "Long Range (LoRa)" packet radio transceiver with built in USB and battery charging.
This 433 MHz USB Transceiver Module can be connected to computer USB port using the serial keyboard software control. It is also equivalent to an integrated multiple remote control equipment that can completely replace the remote control for signal transmission but it should be noted that it couldn’t directly simulate a remote control signal.
The H3V4F is a miniature transmitter and receiver module with a frequency of 433MHz. It is very popular for remote control systems, such as wireless doorbell, remote control rolling gates, smart car, smart home, etc.