Meritline offers the factory-refurbished Logitech M505 Wireless Laser Mouse in Red, model no. 910-001326, for $15.99. Apply coupon code "MLCK108PNL1" to drop it to $11.99. With free shipping, that's tied with our mention of a refurb from a month ago and $18 under the lowest total price we could find for a new unit today. This 2.4GHz wireless mouse features a unifying receiver which can support up to six compatible devices. A 90-day Logitech warranty is included.