Best Buy offers the Logitech M315 Cordless Optical Mouse in Violet Splash (pictured), Colt Matte, Silver, Steel Blue, Brilliant Rose or Blades of Grass for $14.99 with free shipping. That's the lowest total price we could find in any color by at least $10. Sales tax is added where applicable. This 2.4GHz wireless mouse features a nano-receiver, and more.