Electronics Expo via eBay offers the Altec Lansing Orbit USB Lite Speaker for Laptops and Netbooks, model no. IML227, for $14 with free shipping. Outside of the price below, that's the lowest total price we could find by $5, although we saw it for $4 less last month. It features an LED power indicator, retractable stand, and more.

A close price: UnlockedCellPhoneKings via Amazon offers it for $14.99 with free shipping for Amazon Prime members.