Amazing digital speech technology asks more than 10,000 questions, tracks scores, rewards correct answers, and even plays anthems and songs. Interactive geography quiz game with dazzling lights and sound effects to guide, reward, and excite! One to four players choose quiz categories (USA/Canada, World, World + USA/Canada) and answer response times. It's an effective teaching globe as well as a fun quiz machine! Crystal-clear speech, fun sounds, and international music add entertainment and educational value. Features 12-inch geopolitical globe, automatic scoring, adjustable volume, question repeat, help button, and jacks for optional AC adapter and headphones (sold separately). One-year warranty. Requires four batteries or AC adapter (both sold separately).