Features: The SX1278 wireless module provides stable and efficient wireless communication for 10KM. With its high sensitivity, low power consumption, and long transmission distance, the SX1278 module is suitable for a wide applications in various industries. Designed for professionals in online retail, developers, and manufacturers who require reliable wireless communication. This versatile module can be used in remote monitoring, environmental sensing, agriculture, and other scenarios, providing stable data transmission and remote control capabilities. Enhances your business with seamless wireless communication using the SX1278 module, ensuring reliable connecting and expanding your product offerings. Specifications: Item: SX1278 Wireless Spread Spectrum Transmission Module Material: Metal+PCB Model: Ra-01 Connection：SPI Most Distant： 10KM Frequency：433M Antenna: Spring Antenna 2.5dBi Style: Patched style / Patched to Direct Insert Size: As Pictures Power: 2.5V-3.7V 3.3V Package Includes: 1Set SX1278 Wireless Spread Spectrum Transmission Module note: Due to the problems of lighting effectsand shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.