The RA-02 with Wireless Modules RoHS is a sophisticated electronic module, manufactured by Ai-Thinker, which offers a high performance wireless communication link. The module supports both 2.4GHz and 5GHz radio frequency bands. It is based on the Atheros AR9331 chipset and is designed for low power and long-range wireless communication. The module is compatible with both an onboard antenna and a remote one. It is compliant with the Restriction of Hazardous Substances (RoHS) Directive and is ideal for IoT and wearable applications. The module supports IEEE 802.11b/g/n and is capable of reaching data rates up to 150 Mbps. It features built-in encryption, authentication, and management support to ensure a secure wireless communication.