bafang motor controller

Hello I'm starting a new carbon e-mtb for road and offroad. Light. I bought a 250w bafang hub rear motor (3 pins (higo)) . Does it mean sensorless ? 9 pins mean with sensored ? it is a bfcst 700c 13 36v 250w 1703128627 bafang rear hub motor I have a rear derailleur with a ten speed cassette. I...