Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Shocks Weaken and The Noise Got Stronger

Bought this item in April 2010. In August, my husband used it as part of his exercise regimen and he said he heard a loud pop sound. Now it makes this thumping clutching sound. Not as quiet as it used to be. This did not last in a year at all, but in four (4) months. 90 days limited warranty only...so this item is bust. This item's shocks will break before you say, "I only used it sparingly." Only used it eight times. The End. Update: Contacted INVU company and Amazon at the same time. Amazon had quick response and GREAT customer service. Invu took their time in replying back so I didn't feel like dealing with them.