Lifelike realistic action. Move freely with the transmitter! Robosaurus can walk, run and hunt with a natural predator motion. Move forward, backward, and rotate left and right to freely manipulate; Use a powerful jaw to bite. Pull it! The head, neck, and tail are movable. Switch between operation with transmitter and automatic walking mode; Various reactions with various touch sensors (tail, chin, mouse), stereo sound sensor, and infrared sensor. (Batteries): Main unit: 6 x AA batteries (included), Transmitter: 3 x AAA batteries (included); Product size: Approx. 31.5 inches (80 cm) *This product cannot be used simultaneously at a short distance.