My 3.5 yr old loves his remote control Dinosaurs. My living room is Jurassic Park !.......I hear "ROAR !!!" in the dark !!! The kid has over 30 T-Rex dinosaurs in various sizes. However -- I can't tell you HOW MANY of the battery/remote toys --- NEVER worked -right outta the box ! Most worked half @ssed......a couple NOT at all. I had to speak with my wife about not losing the receipts -- she was not keeping them + we got "stuck" a few times ! She finally has paid an "insurance $10 fee" at the toy store - ( I know....what a scam......but they take the toy back NO MATTER what ) because we have returned so many of these battery operated malfunction toys ! * The largest + most expensive T-Rex -- worked half @ssed = last night. Another one to return ! You don't even get....."what you pay for" !!