Usage Tips:[Easy to Use]- simply press the red buzzer to light up and loudly. [Funny Prank]- office desk gadget, home quiz evening & can be contest prop toy for adult. Actively encourage contestant to join in the competition with this quiz game buzzer [" WRONG ANSWER " BUZZER]- for quiz games in classroom, the students enjoy buzzing it for wrong answers on spelling bees or math drills. [Powered by AAx2 Batteries]- battery not included), support play more than 2000. Buzzer Button with Light and Sound: built for durability, small system, easy to store, easy to operate Easy to Use "-in" Gameshow Buzzer: Simply hitting the buzzers to light up and it loudly. adds so much fun for your playing A great buzzer for your home quiz evenings, perfect classroom game accessory, family competitors rejoice Great for Gaming and Competition:Great contest prop toy for play competitive question and answer games, response buzzers let competitors easily when they have an answer Colour:Photo Color Material:Plastic Package Contents: 3x Game Answer Buzzer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.