Lenovo Outlet offers its Lenovo N3903A Wireless Mouse in Metal, model no. 57Y6596, for $15.99 with free shipping. That's the lowest total price we could find by $3 and the best we've seen since last fall, when it was $3 less. Sales tax is added where applicable. This mouse features a 1,200 dpi resolution, USB transmitter, and more. Two AAA batteries are required, but not included.