Meritline offers the refurbished Logitech M505 Cordless Optical Mouse in Silver, model no. 910-001316, for $15.99. Coupon code "MLCK507DNL1" cuts it to $11.99. With free shipping, it's tied with our February mention of a refurb and $18 below the lowest total price we could find for a new unit. This 2.4GHz wireless mouse features a unifying receiver which can support up to six compatible devices. No warranty information is provided. Coupon expires after 200 redemptions.