This may look like your average boombox, but the Blaupunkt Velocity 2Go 6 is actually a 160 W maximum power subwoofer for traveling from your home or car’s sound system to any other destination that needs a bit of audio pumping up. With a frequency response of 40 to 120 Hz/ 40 to 25.000 Hz and RCA/high-level/3.5 mm auxiliary inputs, it will run on a 12 V/230 V or 8 AA rechargeable batteries (not included.) At a size of 480 x 220 x 240 mm and a weight of 7 kg, if the price of $619.99 seems a bit steep, there is also a Velocity 2Go 5 model available for $514.99.