. Perfect for mid to large meeting rooms as well as classrooms in higher education where semi-professional high brightness performance is required the P501X is a very bright & compact conventional projector recommended for screen sizes of up to 140". Thanks to the compact design large optical zoom of 1.7x vertical lens shift & vertical & horizontal keystone correction flexible integration into any room is a reality saving unnecessary installation costs. Customers that need advanced connectivity benefit from remote control & monitoring over wired & wireless (optional) network also content transmission including audio is supported. An optional adapter for Intel Wi Di even allows high quality video & audio transmission in excellent quality. A large number of input options allow you to connect all types of digital & analogue input signals Features 5000 lumens Contrast Ratio 4000 1 Resolution 1024 x 768 Affordable Large Screen projection Full Connectivity & Media Playback Quick Start Manual Wall Color Correction Timer-Function..