Small robot supplied in kit version. You could assemble a likeable sound detector robot. Their 4 integrated microphones will detect the sound and allow the robot to rotate. Thanks to simple claps of hands you could obtain that your robot follows you like a faithful small dog. It is supplied with a complete and detailed instruction manual composed by 19 pages which will guide you, step by step, during the assembly. 

It requires 4 batteries 1,5V AAA type (not included)
Tools: pliers and wires cutter, screwdriver

It does not need soldering