SKY66112-11 RF Front End Module Skyworks Solutions SKY66112-11 RF Front-End Module (FEM) offers compatibility with multiple wireless standards in a single RF module. The SKY66112-11 FEM allows wireless connectivity with ZigBee, Thread, and BLUETOOTH® standards, including Bluetooth 5. When paired with a System on Chip (SoC) platform, the result is an efficient Internet of Things (IoT) solution with long battery life and an extended transmission range.