Shimano sh iewwu101c wireless unit for di2 d fly ant bluetooth e tube
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 Di2 Wireless Ultegra and Dura-Ace - BIKEPACKING.com
Shimano EW-WU101 Di2 Wireless Unit - Bike
Shimano FCC Application Hints at New Wireless Groupset - Pinkbike
SHIMANO 105 GOES WIRELESS, 12-SPEED, ELECTRONIC - Road Bike Action