Instruct: Classify Amazon reviews into positive or negative sentiment
Query: worthless, cheap junk

the positive reviews of this product were probably posted by the manufacturer. The amplifier doesn't amplify, it just distorts. The telescope/microscope does neither, its impossible to focus on anything at all. The lazer pen sort of works. I bought similar items at the dollar store. 1$ for a microscope that focused, another $ for binoculars that actually focused and 2$ for a microphone unit that distorted just like the one in the spy kit. (...) save your money