For the people looking for a reliable dock with speakers, Logitech has a pair of portable speaker systems that should be a good choice. Though it is confusing to note if both are rechargeable, it is obvious that both are portable! Also, it is practically automatic for most iPod docks to recharge although the S315i seems to be telling us that the speakers themselves can be recharged (or something like that).

Anyway, the Logitech Rechargeable S315i speakers are great for people looking for exceptional sound delivery. It features a slim design and durable metal grills that should be able to provide the complimentary speaker requirements that iPod owners require.

On the other end is the S125i which is recommended for first time iPod owners. It is an easy-to-transport speaker dock which carries extra bass at the touch of a button. Ideal for people who want to share the musical tunes they listen to wherever they go.

Both come with the usual AC adapter and standard 3.5mm jacks which may come in handy just in case you have another portable media player in tow.

(Source) Blogitech