This Celluon Epic Laser Keyboard drops from $99 to $74 with free shipping at AT&T. This is the best price we could find for this portable projection keyboard by $20. This keyboard functions just like a normal keyboard, but at 1/4 the size making it extremely portable. It has adjustable brightness with sensitivity and sound feedback and works on flat and opaque surfaces. It's compatible with any device running these operating systems or higher: iOS4, Android 4.0, Mac OS X 10, Windows XP, and Blackberry 10 devices. Sales tax is charged in most states.