The JBL Xtreme Portable Bluetooth Speaker in Red or Blue drops from $299.99 to $179.99 at Sprint. Shipping will add $10, but the lowest price we found for one of these speakers elsewhere was $234.99. These speakers are large. So large, in fact, that they actually come with notches for attaching a shoulder strap to carry them around. They also have a 10,000mAh rechargeable battery so they can play continuously for 15 hours or charge other devices. Sales tax is charged in most states.