Best Buy offers the Logitech Ultimate Ears Boom Portable Speaker in eight colors (Black pictured) for $169.99 with free shipping. (Amazon and Crutchfield offer it for the same price.) That's the lowest total price we could find by $30, although we saw an open-box model for $40 less last month. This wireless speaker features a 3.5mm auxiliary input, NFC, and up to 15 hours of music per charge.