Tomtop Deals via eBay offers the Seenda Mini Wireless Bluetooth Keyboard with Touchpad, model no. IS11-BT05, for $10.99 with free shipping. That's the lowest total price we could find by $12. It features a QWERTY mini backlit keyboard, touchpad, Bluetooth 3.0, 30-foot range, and approximately 10 hours of playtime on a full charge. It's compatible with most computers, mobile devices with Android 3.0 or later, and more, although the touchpad feature is not supported on iPhone or iPad.
Expect up to four weeks for delivery.