Shimano's EW-WU111 Wireless Unit allows wireless communication with Garmin and other compatible cycling computers. In addition, the EW-WU111 lets you program your DI2 preferences on a Bluetooth LE smartphone or tablet with Shimano's DI2 app.

At just 38 millimeters long and only a little wider than brake housing, the unit is unobtrusive. The transmitter clips onto brake housing for clean installation.
Use in conjunction with external battery mount BM-DN100 or seat post battery BT-DN110. Requires extra cable (not included) for in-line installation.

- Actual weight: 3 grams
- 38 mm long
- Shows gear selection, DI2 battery level, adjustment mode info
- Enables wireless communication with compatible ANT+ and Bluetooth LE devices
- Waterproof
- Use in conjunction with external battery mount BM-DN100 or seat post battery BT-DN110
- D-Fly compatible
- E-tube Project
- Requires extra cable (not included) for in-line installation
- Two year warranty
- Made in Japan
- Part # IEWWU111

Wireless communication

Smartphone: wireless Bluetooth connection via E-Tube app
Functions: programmable circuit behavior, firmware update

Tablet: Wireless Bluetooth connection via E-Tube Project Wireless App
Functions: programmable switching behavior, firmware update, troubleshooting, creation of driver profiles

ANT + devices: wireless connection; Functions: gear indicator, battery status


Technical specifications:

Material: Plastic
Compatibility: Dura-Ace Di2 R9170 / 9070, Ultegra Di2, GRX, XTR Di2, DEORE XT Di2
Fastening: by elastic band
E-tube connections: 2