Meritline offers the factory-refurbished Logitech Z305 USB Notebook Speaker System, model no. 984-000138, for $28.99. Coupon code "MLC7D13NL1" drops it to $24.99. With free shipping, that's $23 under the lowest total price we could find for a new one. (We listed a new model for $6 more last month.) This speaker clips to the top of your laptop's screen. A 90-day Logitech warranty applies. Coupon expires after 100 uses.