V-KSR1 ROBOT CAR KIT (21-881)
Price: $15.31

A series of Robot Kits for the future engineer. Build these kits and find out how much fun electronics & mechanics can be !
A sensor-activated robot car. The car changes directions when the sensor detects noise or when the car hits an object.
Specifications:
- uses a microphone as sound sensor;
- power supply : 2 x 1.5V AA batteries (not included)