What is rf circuit, Bluetooth chip USB, Bluetooth module, rf receiver circuit

CYBLE-222014-01: 4.5 V 1 Mbps 21.5 mA EZ-BLE™ PRoC™ Bluetooth 4.2 Module

https://www.futureelectronics.com/p/semiconductors--wireless-rf--rf-modules-solutions--bluetooth/cyble-222014-01-infineon-6068750