This is a 48 - 72V 60A (30-60A programmable) Naccotech Controller with Bluetooth adapter. It works with alarms, voltmeter key ignitions, on-off buttons, and most throttles. Has a motor immobilizer lock feature, a reverse gear function, and eco/turbo function, a 3-speed function, and allows cruise control. It supports a low brake (motor cutoff) and high brake (ABS). Do note that this controller only works with motors that have hall sensors.