Amazon offers Prime members the ZAGGkeys FLEX Bluetooth Keyboard, model no. FOLZKFLEXSLV, for $19.99 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise it adds $8.35.) That's $5 under our December mention and the lowest total price we could find today by $6. (It's also tied with the lowest we've seen for this keyboard in any condition.) This keyboard is compatible with a wide range of tablets and smartphones and 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.