The PX5, being a Bluetooth "dumb" device, does not require any device driver. It's like using a cellphone with your PC's Bluetooth interface.
However, the PC's Bluetooth interface ("radio") may require a driver update to work properly with the PX5.
Please check with the manufacturer of your PC to find out about driver updates for your system's Bluetooth interface. We do not provide any such driver.
All files and documentation are offered on an *AS IS* basis and you assume full responsibility for using them.