The modules are offered with 2.4GHz Wi-Fi® 6, BLUETOOTH® 5.4 LE, Bluetooth Classic, and IEEE 802.15.4 connectivity, supporting Zigbee® 3.0, Thread 1.4, Matter, and application-layer protocols. The modules are built around the ESP32-S31 series of SoCs, featuring a RISC-V 32-bit dual-core microprocessor running up to 320MHz, a ULP-RISC-V coprocessor, rich peripherals, and an onboard PCB antenna.