Easy to Use: Simply press the top of the buzzer to activate the light and sound, convenient for children and adults. Each button requires two AA batteries (you need to buy them yourself), please note that the buzzer already has four different sound effects and cannot record other sounds. Interactive Fun: Includes 4 colorful buzzers (blue, green, yellow, red), perfect for group activities and team games, each buzzer lights up and makes a sound, adding excitement and clear identification to each player's response. Intimate Family Time: answer buzzer is a great grab toy, especially for family parent-child games such as questions and answers, voting, debates, etc. These buzzers help children focus while learning and communicating, and are a great way to improve their responsiveness to any classroom activities or games! Safe and Portable: These buzzers are made of high-quality and sturdy materials to durability and resistance to damage. Convenient to carry, they can be easily taken to different places or classrooms. Fun Gifts for Kids: You can use them as and fun gifts for children on birthdays, Halloween, Christmas, and other occasions. This button provides a lot of unexpected entertainment and interaction, bringing them endless fun.