Wireless buzzers (robust buzzers) link to your pc. Contestants hit the buzzer to answer the question. A configurable lockout ensures there's no confusion over who answers first. There are no cables to trip over, and your contestants can be anywhere within a large room. A USB receiver plugged into your laptop completes the system. You can have up to thirty contestants or teams. It's even possible to run more than one quiz game within a room. You can give each control its own individual sound. Kits are used by many different organisations to produce quizzes and quiz games for every occasion.