Detailed Instructions: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Problem:You can't hear the singing, this microphone is useless because the microphone quality is horrible. Got this for my daughter for her birthday. Waste of money.
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Microphone is too quiet, doesn't amplify voice any, terrible sound quality