The HY-40R204C with Wireless Modules Module RoHS manufactured by Shengrun is a type of Wi-Fi module. It supports 802.11g/b/n networking protocols, and is a 2.4GHz Wi-Fi solution with built-in security protocols. This module includes an integrated circuit(IC), antenna, crystal, and other peripheral components. The module is compliant with the Wireless Local Area Network(WLAN) standards, and is also compatible with different types of microprocessors. It also comes with FCC certification and is RoHS complaint, making it safe and reliable to use. With its high compatibility and portability, this module is ideal for a variety of applications such as home automation, internet of things(IoT), healthcare, wearables, and more.