Updating nokia n96
It enables identification of the manufacturer, product id, product version, and the version of the Device ID specification being met.
It is useful in allowing a PC to identify a connecting device and download appropriate drivers.
For example, there are Hands-Free Profile (HFP) 1.5 implementations using both Bluetooth 2.0 and Bluetooth 1.2 core specifications.
The way a device uses Bluetooth technology depends on its profile capabilities.
It enables similar applications to those the Plug-and-play specification allows.