Included in the box are two plastic adaptors to make different iPod models fit more securely and comfortably in the Dock Connector bay. One of these inserts is for the mini, and the other is for the nano and other slim models. I would've liked to see an adaptor specifically designed for the nano, since it is not a perfect fit like the mini's insert is.
The back is flat except for three ports: a line-in connector, a Dock Connector pass-through, and the AC adaptor port. The line-in connector allows you to use the speakers with non-iPod devices and iPods that don't have a Dock Connector, but it doesn't really make much sense to buy these if you don't own an iPod with a Dock Connector (and the cabling that would be required for this is not included). If you connect the pass-through Dock port to a standard iPod sync cable (like the ones that come with most iPods), you can sync while your iPod is in the speakers' Dock, and if the AC adaptor is connected, it will charge both the speakers and the iPod.
The remote has more controls than are available on the speakers themselves, including a play/pause button and next track and previous track buttons in addition to duplicates of all the buttons on the unit.
Neither Logitech nor other sources have provided any numeric measurements of the speakers' volume or wattage. However, I found the volume to be more than enough for a small-to-moderate size gathering.
Play That Funky Music
I tested the Logitech mm50 speakers with both an iPod nano and an iPod mini, and found the audio quality to be about the same with both. As a "reference point," I compared these speakers primarily to the XtremeMac FS1 earbuds that I reviewed here, and to a standard pair of Logitech speakers that I have connected to my computer. Here's how they fared:
A cappella/Vocal: A cappella tracks sound similar to the way they might sound on a pair of midrange earbuds, such as the ones Apple includes with iPods. Voices are clear and pleasant, although the background singers and other smaller details often fade into the background.
Podcast/Voice: Podcasts are not known for having the highest fidelity in the first place, and most speakers and earbuds I've tried were actually much better than you would need to get the best possible sound from a podcast. Thus, it's no surprise that podcasts sound just about optimal on these speakers as well. I'm not sure why you would want to crank out podcasts at a party, but if you ever need to use these speakers for a podcast, you won't be disappointed.
Rock/Pop: As I've mentioned in other reviews, modern pop is enhanced and mixed to an extent that I don't even understand, and that fares well for these speakers. Rock and pop songs are clear and maintain their original "feel", or sense. Although you may not hear the stunning level of clarity provided by products like the XtremeMac FS1 earbuds, you definitely won't have to tell people, "Well, trust me, this song sounds good when I listen at home."
Hip-Hop, Rap, R&B: The bass output provided by the mm50 is powerful and crisp. This makes hip-hop music sound better than you may be used to hearing from small speakers like the ones built into many computers, or from inexpensive earbuds. I would say that the bass was not quite as strong as my (physically larger) Logitech computer speakers, but it still sounds quite good.
Country: I still hate country. If that bothers you, feel free to write your own review.