Robot Kit Sound Sensor

A series of Robot Kits for the future engineer.
Build these kits and find out how much fun electronics & mechanics can be!  
A robot that uses 2 touch sensors to detect obstacles.
When its antennas (touch sensor) detect an obstacle, it will first step back and then automatically execute a two-step maneuver to avoid the obstacle.
The maneuver is a combination of “left turn”, “right turn”, “reverse” or “stop”.
The Robot can be configured with different sets of movements.
The Kit comes complete with 2 sets of differently designed legs, which move in their own distinct way.
SPECIFICATION:
A robot that makes use of two touch sensors to detect obstacles.
When its Antennal (Touch Sensor) detects an object in its path, it will go backward first and automatically follow a two-step manoeuvre to overcome the obstacle.
The step can be a combination of Right, Left, Reverse or Stop.
The robot can be configured for different set of movements.