The HLK-RM58S with WiFi Modules ROHS are a series of modules manufactured by HI-LINK. They are designed for the development of High-speed, long-distance Wireless Communication, Wi-Fi Networked Applications, and Internet of Things. These modules are incredibly versatile and can be used in a wide variety of applications. They feature an advanced directional antenna that is capable of providing up to 150 Mbps performance in an area of up to 5000 square meters, and a low-power MCU that supports both Wi-Fi and IP functions. They also come with integrated debugging, storage, and an updated communication protocol. Additionally, these modules are compliant with RoHS, CE, FCC, and other relevant standards, ensuring they are safe and reliable for use in any application.