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.
RF-WM-11AFB1 is a Wi-Fi module targeted at the low-power markets. The module with rich resources makes it popular in the Internet of Things applications.