Twist Grip Regulator (throttle) & Brakes 

The brake levers cut off the controller power when pulled
Main features: contact less, long life, and good wet resistance

EB-01 : Brake with switch cut off

TG-01 : Twist Grip Throttle Regulator 

Specification:
Voltage: DC5V
Output voltage: running 5 volt, stopping : 0 volt
Connection pattern is similar to throttle wiring