Meritline offers the refurbished Logitech M525 Wireless Optical Mouse in Black, model no. 910-002696, for $16.99. Coupon code "MLCK05TN" cuts it to $9.99. With free shipping, that's the lowest total price we could find for a refurb by a buck. This wireless mouse features a unifying receiver, micro-precision scroll wheel, and an ergonomic design. It requires two AA batteries, included.

No warranty information is provided.