Listen to Crashhopper speak with the Ben 10 Omniverse Sound Alien Figure. With his powerful legs, Crashhopper is able to jump extremely long distances which creates deadly shockwaves. Plug this 15cm tall action figure into his sound base to hear awesome sound effects and phrases from the TV show. You can also connect the voice box into your Omnitrix Touch to unlock secret alien voice messages. The Ben 10 Omniverse Crashhopper Sound Alien Figure needs 2 x LR44 batteries (included) and is suitable for kids aged four and up.