ACN52832 is all you need to start developing low power consumption IoT and Bluetooth applications. The module is equipped with powerful Nordic Semiconductor's micro-controller nRF52832 which runs on 64MHz. It is a so-called SoC - System on a Chip - the nRF52832 and Bluetooth Low Energy radio in one IC package.
ACN52832 module is not some kind of modem or Bluetooth transceiver only (like popular HC-05 for example), the ACN52832 is all you need!