newegg offers the Aluratek Bump 3.5mm Mini Speaker, model no. APS01F, for $19.99. Coupon code "24HRSALE725J" makes it $14.99. With free shipping, that's the lowest total price we could find by $6. It's compatible with most MP3 players (including iPod and iPhone) and features an expandable bass chamber, built-in Lithium-ion battery, and USB connectivity. Deal ends today.