The Sony Ericsson Device 116 USB WMC Modem is a USB modem device used for mobile broadband, typically for connecting to the internet via a 3G or 4G mobile network. This device is part of the Sony Ericsson mobile broadband modem series, which allows users to connect their PCs to mobile networks via a USB stick or dongle.

The Sony Ericsson Device 116 USB WMC Modem Windows driver is the software that enables your Windows computer to recognize and use this USB modem. The "WMC" in the name refers to Windows Mobile Connect, which is a feature allowing mobile broadband connectivity via mobile network operators. Installing this driver is necessary for the modem to function correctly with your computer, enabling internet access over the mobile network.