The SX1278S43S+T-X1 is a wireless module manufactured by Vollgo that is SMD compliant and RoHS certified. It is part of the SX1278 series of integrated transceiver modules with high sensitivity, low power consumption, and long-range functionality. It is designed to bridge data wirelessly between two-way communication systems, allowing for secure communication between a wide range of subsystems in various fields such as long-range remote control systems, elderly care products, and IoT devices. It offers data transmission and reception ranges of up to 4 km (2.5 miles). This module has an integrated PA/LNA for improving signal strength and reducing the power consumption. It has a frequency range of 862-1020MHz, allowing for flexible frequency hopping. The module has high data rate transmission and high anti-interference capabilities making it suitable for highly-demanding applications.