Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Comfortable, Looks good, but doesn't work!

I've bought this headset as a replacement to a Radio Shack headset that I had for years and finally twisted the cord one too many times. I thought that I could "upgrade" to this one but no such luck. During almost every conversation I'm asked if I have them on speakerphone, or worse I have to shout into the phone. I can hear the caller just fine but they cannot hear me.There is also an issue with a squelch from time to time if the plug is turned the "wrong" way.