A4C offers the refurbished ZAGGkeys FLEX Bluetooth Keyboard, model no. FOLZKFLEXSLV, for $19.95 with free shipping. That's $10 below our August mention of a new unit and $10 under the lowest total price we could find for a new one today. This keyboard is compatible with a wide range of tablets and smartphones, in addition to the iPhone and iPad. It features a keyboard case that doubles as a stand with landscape and portrait display, auto on/off magnet, built-in keyboard battery, keystroke shortcuts, and microUSB charging cable. Deal ends November 7.

Of note, a 90-day A4C warranty applies.