Instruct: Classify Amazon reviews into positive or negative sentiment
Query: intermittent microphone connection

The product works great except 2 things:The wireless microphone does not maintain a constant connection (yes, i am using new batteries and the unit is fully charged). Expect to need to send it back for a replacement.Also, while an "Ipod" works in the unit - you can NOT use the dock with an "Iphone". There is interference even if you put your phone in "airplane mode" to turn off all external signals. You have to plug your Iphone in by plugging it in through the headphone jack - that works just fine (but no charging or ease of control via the dock).