iEGrow via Amazon offers the iEGrow F18 Universal Portable Foldable Bluetooth Keyboard in four colors (Grey pictured) for $46.99. Coupon code "IXJO89R9" cuts it to $36.99. Plus, Prime members grab free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.51.) That's the lowest total price we could find by $7. It's 55mm thick when folded and features aluminum alloy construction. Deal ends November 30.