Changing gear by thought alone...

[tintin40]

me o O ( should change up now )
<click>
me o O ( arggghhhh, too early, shouldn't have changed up )
<clunk>
me o O ( what a looser, I shouldn't have changed down )
<click>
me o O ( argh, my legs )
<clunk>
me o O ( oh not not again )
<click>
<clunk>
<snap>
me o O ( single speed? )

 

[KermitGKona88]

Don't worry when they put it into production they will probably have a much more suitable name 'MARVIN' perhaps