Lenovo offers its Lenovo M0620 Multimedia USB 2.0 Stereo Speakers in Black, model no. 0B45914, for $29.99. Coupon code "USP1AG415914" cuts them to $10.99. With free shipping, that's tied with our June mention as the lowest total price we've ever seen. (It's also a current price low by $26.) These USB-powered speakers feature an auxiliary 3.5mm audio jack. Coupon expires August 7.