Use Lenovo coupon code USP1AG46573
Search for 57Y6573
to get the deal. Lenovo has this N3901A Wireless Mouse for $29.99, but you can get it for $9.99 when you use the coupon code. Features five buttons, nano USB receiver, 1000 dpi and a wireless range of 10 meters. Buy.com
has the same item for $33.15. Shipping is free.