Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't bother under these conditions

I bought this coupler to put two 25' phone cords together (the cord between the hand set and the phone itself). We were always stretching a single cord beyond its limitations when talking on the phone. However, when using this coupler, I could not get a clear connection between two cords. I tested both cords (at first I thought I had a defective cord) but I determined the issue was with the coupler. Perhaps it just should be considered only for line cords (between the wall jack and phone) that do not have tension.