Meritline offers the Pixxo USB Stereo Multimedia Speakers, model no. SP-N100G, for $12.99. Coupon code "MLCK621QNL1" drops them to $6.99. With free shipping, that's tied with our May mention and the lowest total price we could find by $4. This USB-powered speaker system features a 250Hz to 18kHz frequency response, 3.5mm audio jack, and more. Coupon ends after 100 redemptions.