This Braven 600 Wireless Bluetooth Speaker with PowerBank drops from $99 $69.97 to $66 at World Wide Stereo when you use our exclusive coupon code BRADSZ600 at checkout. Plus, shipping is free! This was the lowest price we found by $10. This is a Bluetooth speaker and battery charger in one, with a built-in 1400mAh battery that can recharge USB enabled smart phones, tablets and more. It also has a built-in mic for taking calls. Sales tax is charged in most states.