All-in-One kit includes all parts required for assembly of 4 brushless motors: simple reed switch motor, reed switch motor with the transistor, motor on a Hall Effect IC, and motor with optical control.
This is a perfect kit if you want to experiment with different configurations and learn how all these motors work. You may build each motor one at a time. You may also place all parts together and change connections for each motor. If you want to easily switch between the motors you may consider Kit #9 that adds a switch to this kit.
This motor uses standard AA size batteries (not supplied). Included jumper wire allows to experiment with different voltages.
Soldering iron required for assembly; you may add an inexpensive one with some solder here.