Groupon offers the Mobi South Park Portable Pocket Speaker
in five styles for $10
for shipping. (You can spend $15 or more to qualify for free shipping.) That puts each at the lowest total price we could find by at least $7 (and as much as $12). Each 3.25" x 4.75" x 2.5" speaker features a rechargeable lithium-ion battery, 2-watts RMS power, and more. Deal ends February 15 at 1 am ET.