Lenovo offers its Lenovo N3901A Wireless Mouse in Black, model no. 57Y6573, for $29.99. Coupon code "USP1A26573" cuts it to $13.49. With free shipping, that's $2 below our mention from four weeks ago and the lowest total price we could find by $11. Sales tax is added where applicable. This mouse features a 1,000 dpi resolution, 2.4GHz wireless technology, and more. Coupon expires April 9.