Walmart offers the Toshiba Nano Wireless Laser Mouse in Navy Metallic, model no. PA3745U-1ETZ, for $12. Choose free Site-to-Store pickup to avoid the $1.97 shipping charge. That's tied with our September mention and the lowest total price we could find by $1. Sales tax is added where applicable. It features a micro USB receiver, symmetrical shape for left- or right-handed users, 1,600dpi sensor, and more.