The party game Speech Jammer from Hasbro Gaming puts your language skills to the test. In this Speech Jammer challenge, the speaking person puts on a special headset with a built-in microphone. The headset plays back their own voice into their ears with a time delay. Under this acoustic influence, terms from the included cards must be described while other players guess the words. The game is designed for a group of 4 to 10 people and includes 100 challenge cards as well as the electronic headset. Operating the microphone requires 3 AA batteries.