First Look: Shimano Brings Electronic Di2 Tech Down to Deore XT, Adds Wireless Connectivity and 11-46 Cassette Option - Mountain Bike Feature - Vital MTB
Shimano Granted Another FCC Wireless Approval for Derailleur & Control - Pinkbike
Shimano Di2 Wireless Ultegra and Dura-Ace - BIKEPACKING.com