Shimano BT-DN110-A Built-In Type Di2 Battery (Grey) - Performance
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.
Shimano Di2 Wireless Unit - EW-WU111
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