One feature on the EW-WU111 is a wireless Bluetooth connection to Shimano’s E-TUBE program, which is the system Shimano uses to set up and control the Di2 shifting behaviour. Through Bluetooth technology riders or mechanics can wirelessly communicate with the EW-WU111 wireless data transmitter unit via a computer, tablet or a smart phone. As well as allowing wireless workshop customizability, it allows riders to customize their shifting preferences on the trail via an app on their smartphones.
Smart phone: Bluetooth® wireless connectivity through E-Tube Wireless App; Functions: Drivetrain customization, firmware update
Tablet: Bluetooth® wireless connectivity through E-Tube Project Wireless App; Function: Drivetrain customization, firmware update, error check, pre-set.