The Hamleys® Light & Sound Fusion Ball is a self-bouncing ball and it will cause giggles and minor mayhem wherever it goes...Lights, beats, music and motion; it\'s everything boys and girls could want from a toy! We know noise and bouncing might be the last thing you want to endure the first thing Christmas morning, or indeed any morning for that matter, but this really will keep them amused - and it includes batteries, so no elephant memory or desperate scrambling required. Requires 2 x AAA batteries (included).