Better not leave any popcorn or chips around... This little jitterbug robot is waiting for night, or when it's completely dark, to roam the countertops in search of goodies ;) The light sensor allows the jitterbug to come alive and scoot around with the help of a tiny vibrating motor. Customize its antennas and legs. Flashing LED allows you to find this little critter. Operates on a 3V CR2032 coin battery (included). Size of PC board 1.8" x 0.9". Complete with parts, battery, PC board and instructions. Soldering required. Skill Level 1. One of the most reasonably priced robots available anywhere!