Today only, Dell Home offers the Audio Unlimited 2.4GHz Wireless Indoor / Outdoor Speaker System in Black, model no. 724580181002, for $139.99 with free shipping. That's tied with our mention of a similar system from two weeks ago and the lowest total price we could find by $46. Sales tax is added where applicable. Features include wireless range of up to 164 feet and both 3.5mm and RCA outputs.