Talking Trainer! Starts when touched, turns off automatically! This ball hangs from a chain to make it easy to hang up in your bird's cage for hours of fun and learning! The ball is approximately 2 1/8" in diameter. 20 different phrases including "Meow, Meow, Meow" "Psst!" "Whoops! Here we go again" "Chirp, Chirp, Chirp" "Sqeak Sqeak" "Here kitty, kitty, kitty!" Larger parrots should be monitored to be sure they do not take apart the ball.