The Sony Ericsson Device 0016 USB WMC OBEX Interface Windows driver is a software component that allows your computer to communicate with a Sony Ericsson mobile phone or device via USB. This specific driver supports the OBEX (Object Exchange) protocol, which is commonly used for transferring files such as photos, music, and contacts between devices. The WMC (Windows Mobile Center) component suggests it might also be related to managing devices running Windows Mobile or other Sony Ericsson phones, though the OBEX protocol itself is often used for basic file transfers.