What does Nikon Wireless Transmitter Utility do?

Nikon official website's introduction is: Wireless Transmitter Utility is a convenient application for Nikon cameras to wirelessly connect with computers, which will enable you to establish wireless or wired connections with PCs and transmit videos and pictures for uploading.

Nikon Wireless Transmitter Utility was previously called WT-4 Setup Utility. The WT-4 setup utility is dedicated software of WT-4, but the software can be used for a wider range of hardware. Nikon renamed it the wireless transmitter utility, and the latest version is 1.6. 1. Supported devices: WT-6 wireless transmitter (D5 camera compatible), WT-7 wireless transmitter (D500 camera compatible), UT- 1 communication unit (with or without WT-5, compatible with D4, D8 10, D8 10A, D300, D800E)