To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.
I bought two of these as replacements for my daughter's karaoke machine for Christmas.
She had a karaoke party the first week of February. The top broke off of one of them within the first five minutes of the party. When I went online to return/replace the item, it was past the return date.
Five minutes of use and I was down to one microphone.