EW-WU111 Di2 Wireless Unit

• D-Fly EW-WU111 Wireless Transmitter
  
• Customizing gear changes, system diagnostics and firmware updates can now be done via Bluetooth Smart on smartphones and tablets, thanks to the eTube app.
  
• It also allows sending gear and system change data to compatible bike computers via the private ANT+ protocol.
  
• Requires either an internal BT-DN110 battery or an external BM-DN100 battery holder.

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