The Nikon WT-6a Wireless Transmitter is a wireless transfer/remote accessory designed for the Nikon D5. Key features include:
Wireless File Transfers. Once set up, the WT-6a offers wireless LAN IEEE 802.11ac and 802.11 a/b/g/n at up to 130 Mbps. It also has an exceptional range of up to 656 feet with a maintained line of sight.
HTTP or Access Point Mode. In HTTP mode, the Nikon WT-6a lets you access the camera via a web browser on your computer, iOS, or Android device. You can download images or videos, and make changes to image comments, copyright, or IPTC information.
Synchronize Release Mode. When paired with multiple cameras, the WT-6a allows for synchronous release of up to ten DSLRs.