Lloyd was specifically designed for the iPod nano 4th generation, and you can tell that by just looking at it. The microphone attaches to the bottom of the device, and plugs into the audio line-out / microphone line-in port on the bottom. It is nearly the same width/thickness of the iPod nano, and fits well in that regard. I like the fact that the microphone does not add any heft to the device at all. It does, however, add some height. So understand that if you plan on leaving the microphone connected that some cases might not fit it.
Lloyd features a microphone in the center, and an audio line-out port on the left side. The audio out port allows you to leave the microphone connected, while still having the ability to play your tunes. The microphone does cover up the 30-pin Dock connector, so you will need to unplug/reposition the Lloyd while syncing/charging.
I really like this microphone. The sound quality is great, it's easy to carry around, and it doesn't hinder me from using my iPod nano as an iPod. I especially found it to be useful when recording lecture audio, but it could be used virtually anywhere you need to quickly capture audio. My only gripe is that it disables the play/pause/skip button on the iPhone headset while it is attached to the line-out port on the Lloyd microphone. I'm hoping this can be improved in a future version of the product.
At $17.99US, this microphone is an excellent accessory for your iPod nano. The device is available directly from Incipio and is available in either black or white.