Eton NSP400B Soulra Solar-Powered Audio System & Messenger Bag for $79.99. Shipping is $5.00 for a total of $84.99 shipped. Here is a screenshot for your reference. The system is compatible with most iPod and iPhone models with a dock connector and features full-range stereo speakers, integrated solar panel, auxiliary input, and comes with Eton Soulra messenger bag. Most places have it for about $136 or more.