Wurth Elektronik 2611036024001 Radio module 2.4GHz, 3.6V

The Wurth Elektronik Proteus-III 5.1 Bluetooth USB radio sticks combine a BLE module of the Proteus series with a USB-UART converter IC. So you can communicate directly with the BLE module via a virtual COM port and with a PC with USB connection.

Encapsulates Bluetooth on the module and exposes well-defined interfaces
Does not require Bluetooth Low Energy driver integration (Windows, Linux)
Supported Bluetooth roles are Central, Peripheral, Observer, Broadcaster
Supports communication with the who