Best Buy offers the Logitech M325 Wireless Laser Mouse in Dark Silver, model no. 910-002136, Red, model no. 910-002651, or Violet, model no. 910-003120, for $9.99 with free shipping. (Amazon offers it in Light Silver, model no. 910-002332, for the same price via Prime.) That's $1 under our February mention the lowest total price we could find in any color by $7. This mouse's wireless receiver features a compact design so it can be left in a laptop's USB port. It requires one AA battery (included).