About motor parameters:

We choose the default 48: 1 reduction ratio, measured using the code wheel (48: 1 magnetic motor) at 7.2V rechargeable battery, the travel speed of about 0.65M / S. The speed is good (for the most intelligent car use), of course, the drive voltage can be increased to improve its speed, recommended motor operating voltage is 5-10V

DC6V-120ma, DC5V 100ma or DC3V 100ma, Noise Level < 65db