Instruct: Classify Amazon reviews into positive or negative sentiment
Query: TERRIBLE A/V Switch!!!

I bought this a/v switch to switch between my computer and tv as a source for a set of powered speakers. The RCA switch produced tons of noise from the other channels, even while turned off. While using the TV as the source, the switch added a constant "clicking noise".Also this not sold from amazon but some "shoptronics" company. They have terrible customer service and will make you pay for shipping costs even if the device sucks and can't even do what its specified.Beware, do not order this switch or from shoptronics.