Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not clear on compatibility

The description is rather vague as to which iPod models and generations this device will actually work with. I think this was designed back when the iPod was just *an iPod* - no nano, no shuffle, no touch, none of those.People have come to expect interchangeability between products and this is obviously a throwback to a former era. Unfortunately, the packaging and information doesn't make that clear at all.