Rapid Answer Buzzer Requires 2 AAA batteries (sold separately) Body size: Width: approx. 7cm Length: approx. 16cm Height: approx. 4cm (approx. 12cm when the panel is raised) When you press the red button, the ⭕️ panel pops up while making a "ping pong" sound. It's quite loud. For rapid-fire quizzes, etc. Unused, but I have opened it to check the operation. It works properly. #toys #quiz #party #banquet #buzzer #chime #kids