Walmart offers the Ematic Portable Bluetooth Speaker with 8-in-1 Universal Accessory Kit, model no. EP205, for $12.88. Opt for in-store pickup to avoid the $4.97 shipping charge. That's $37 off and the best price we could find, although we saw it for $3 less in May. It includes a mini USB cable, wall charger, car charger, cleaning cloth, carrying pouch, aux cable, and audio splitter.
A close price: Amazon offers it for $12.99 with free shipping for Prime members.