Without the use of batteries, the brightly-colored and ice cream cone-shaped plastic microphone creates a natural echo that makes singing along fun. The microphone is fun to play with, with or without Spider-Man, but you can't be timid with it to get the echo effect. Spider-Man holds a plush version of the same microphone in his right hand, while his left hand looks ready for web slinging. Both hands rotate as his upper torso moves to the music.<P> The Sing-a-Long Spider-Man comes set in demo mode. To switch the doll to play mode, the button is located on the bottom of his right foot. (Parents take note: This is also where Spider-Man turns off). The volume can be adjusted by pressing the buttons on both feet for low volume, twice for medium volume, and three times for high volume. Spider-Man sings his theme song as well as his own version of kid classics - "Head, Shoulders, Knees & Webs" and "If You're Happy & You Know It." He sings, "If you're happy and you know it, spin a web!" Sing-a-long cards with the lyrics to all three songs can be cut off the back of the box. While Spider-Man has a soft surface, like many child-safe toys, hard hits with this doll could still hurt.