Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Find a better earpiece option

Used with a Motorola 815 handsetOthers complain they can't hear me.Others complain of an echo.Does not line up in my ear canal, so I often don't hear very well.When the volume is high, the sound is distorted.My expeience shows battery life to be good.I'm shopping for a replacement.