While there are plenty of portable projectors available to choose from, few are really very good. One of the exceptions is Nebula, a sub-brand of Anker Technology Co., with their Nebula Mars Portable Projector ($600).
The Nebula Mars provides some pretty solid specs – projecting 3,000 lumens onto an area between 12″ and 150″ wide with a 1280×800 resolution. The 1 gigabyte RAM is backed by a 12 GB storage with USB expansion. Its 19,500 mAh battery is good for at most a three-hour run per charge. The bright picture is complimented by the excellent dual JBL speakers and its total package size of just 4.8″x5.4″x7″ is sleek and easy to take along.