EW-WU111 Di2 Wireless Unit

• EW-WU111 D-Fly wireless transmitter
  
• Shifting customization, system diagnosis and firmware updates can now be done through Bluetooth Smart on smart phones and tablets, using the eTube app
  
• Also allows to send shifting and system data to compatible cycle computers via private ANT+ protocol
  
• Requires BT-DN110 internal battery or BM-DN100 external battery mount

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