Microsoft Store offers the Scosche boomCAN Portable Speaker in Red or Blue for $9.97 with free shipping. (Blinq via Amazon charges the same.) That's tied with our mention from last week as the lowest total price we've seen. (It's also a current price low in any color by $2.) It features 3.5mm drivers and a rechargeable Lithium-ion battery, and includes a USB charging cable and travel pouch.