This deal has ended.
This Microsoft Wireless Desktop 800 Keyboard and Mouse Combo (5SH-00001) drops from $29.99 to $19.99 with free shipping when you use the promo code EMCXTWV84 at Newegg. This is the lowest price we could find for this set by $7. The desktop set has a 15-month battery life, a 30 foot wireless range, connects via USB dongles and has a battery life indicator. There is no sales tax (except in CA, NJ, TN).