Vantrue via Amazon offers its Vantrue 25-watt Bluetooth Speaker for $49.99. Coupon code "FLHFJKDW" cuts it to $32.99. With free shipping, that's $17 off and the lowest price we could find. It features a 15-watt bass driver, 10-watt treble driver, Bluetooth 4.2, and 24-hour playback time per charge. Deal ends April 30.