TomTop offers this
Backlit 2.4GHz Wireless Keyboard with Touchpad in Black or White for
$5.99 with
free shipping. That's tied with our June mention and the lowest price we could find by $2. It features a 92-key keyboard, touchpad, and backlighting and requires two AAA batteries (not included.)
Note: It ships from China and may up to four weeks to arrive. The countdown timer on the product page does not reflect an actual expiration time and resets daily.