Ocean Technology via Amazon offers the Unitek Aluminium Wireless Stereo Portable Bluetooth Speaker in Space Grey, Blue, or Blue Coral for $13.99. Coupon code "OHQET8FE" cuts it to $12.87. With free shipping for Prime members, that's the lowest price we could find by $4. It features an auto-scan FM radio, MicroSD slot, and Bluetooth 4.0. Deal ends August 31.