Follow Me Robot
This interesting sound detecting robot kit has four built-in microphones to detect the sound sources. When the robot detects a sound, it will turn and move toward the sound. Just clap and the robot will come to you. Clap again from another position and the robot will turn and move in that direction.
A fairly challenging build, you will construct a set of gear boxes and then assemble the different sections of the robot and wire them together.
Requires 4 AAA batteries, diagonal cutters and a small Phillips screwdriver (not included).