8 of 9 people found the following review helpful
Buzzers only suitable for small groups,
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This review is from: Learning Resources Original Answer Buzzers (Set of 4) (DIY & Tools)
I was holding a school quiz and found that the buzzers were not loud enough and when children are pressing them all at the same time it's hard to distinguish one from the other even though they have all different sounds. They are fine for a small group but definitely not for a large group in a big room.