DJACK 3.1 X-Bass Bluetooth Speaker, DJ-F3L Remote Control, Mp3 Player, FM radio, USB Port
The machine has great sound and great durability. So you will have value for your money. Get this subwoofer at affordable price. The woofer has low power consumption so just be sure you will save a lot. This has also Bluetooth system plus Fm radio so you will  not be out of options