Boom Box via Amazon offers the Mighty Rock Touch Wireless Bluetooth Portable Speaker in Black for $25.99. Coupon code "69B7ZH6F" cuts that to $18.77. Plus, Prime members bag free shipping. That's a buck under our March mention, $41 off list, and the lowest price we could find. It features dual acoustic drivers, dual passive subwoofers, touch controls, Bluetooth 4.0, a microphone, 3.5mm auxiliary input, and rechargeable battery with up to a 6-hour battery life.