Motogadget mo.unit blue, digital control box with 12 inputs and 10 outputs and control via Bluetooth, iPhone from iOS 10 / Android from 8.0 (compatibility may be limited by manufacturer)
Axel Joost electronic box version D, very small, fits most bikes, can work with switches and buttons. An optional handlebar adapter can be clamped on. Can be controlled with 2 push buttons. Piece
The bread box adapter allows the connection of various newer speedometers to the original speedometer plugs of various BMW models that still have the old bread box speedometer.
Axel Joost electronic box version H.The article is currently not available. As an alternative, the electronics box version D (#361-924) with an extended range of functions can be used.