Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked well, but....

I've only had this product for a little bit, but I'm already sending it back. It worked great for the first week that I had it at school. I took it home with me over the weekend and the port came loose. After that it worked if I wiggled it around. I tried to email and call the manufacturers only the email bounced back and the number goes to voicemail.I'm sending this product back and will be purchasing a similar product but from a different company.