As one of its daily deals, 13 Deals offers the Beat Box Flat Pack Music Speaker for $6.99 with free shipping. That's the lowest total price we could find by $3. These two virtually flat speakers are mounted in a foldable cardboard boombox that measures 7.5" x 12" x 1.5" when open. It's compatible with any Smartphone or MP3 player. Deal ends August 4.