* This 4WD Smart Robot Car chassis Kits can be a perfect DIY kit for you

* The mechanical structure is a simple, convenient installation.

* The four turn speed dc motor flexible, directional well. Quad, chronological horsepower. chassis and stability is very easy to extend

* The car comes with speed encoder, cooperate with our speed of photoelectric, can rapidly form a speed measuring system. Can speed, range, form a closed-loop system.

Specifications:

* Working Voltage: DC 3V/5V/6V

* Working Current: 100mA/100mA/120mA

* Ni-load (with wheel): 100 RPM/190 RPM/240 RPM

* Speed (no-load): 20 m/min , 39 m/min , 48 m/min

* Noise: ＜65 db

* Wheel Diameter: 66 mm(approx)

* Dimensions(L*W): 25.5*15.5(approx)

Package contents:

4 * Tires

6 * Fasteners

1 * Smart car chassis

4 * DC gear motors

4* encoders