RF-WM-ESP32B1, integrated on Espressif ESP32-C3FN4 SoC, is a low-power and highly-integrated Wi-Fi+Bluetooth 5.0 Low Energy (BLE) module. It supports IEEE 802.11b/g/n (2.4 GHz Wi-Fi) and Bluetooth 5.0, well-suiting for mobile devices, wearable electronics and IoT applications.
RF-WM-20CMB1 is a Combo BLE4.2 Wi-Fi 2.4 GHz module targeted at the low-cost and low-power consumption markets. The module with three RF output modes makes it popular in IoT Internet of Things applications.