Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointed with Sony

I get a lot of interference, painfully loud popping sounds in the earphones (maybe from wireless car security devices in my densely populated neighborhood). I can alleviate this problem somewhat by reducing the earphone volume drastically, and then increasing the source level to compensate. Still annoying, but not painful.Placing the earphones on the charging interface on the transmitter is very difficult and frustrating. After trying to do this for an extended period on one occasion, I was tempted to throw the whole pile of c@*! into the trash.I've owned many Sony Products, and until now, thought they were all excellent.