Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Barely usable

The main reason I got this recorder was to record phone conversations of sales calls for my notes at work. I got a RadioShack device that plugs into the phone and then has a jack that goes to a mic. input. The RadioShack device works fine with a tape recorder but with the XtremeMac IPV-MIC-00 MicroMemo Digital Voice Recorder I can hear myself OK (much quieter than I'd like) but the person on the other end is barely audible most of the time. I've tried every possible setting.