Innovative Auto Focus + Auto Lens Cap:Auto focus comes!!! E30 portable projector with auto-focus tech allows to get clear pictures in 5 seconds of power on, free from troublesome manual focus and cut the setup process in half. The auto-shift sensors detect real-time movements and adjusts focus to keep images stable and clear. The design of auto lens cap eliminates the worry of losing the cap and protects lens from dust/scratches, bringing great convenience and security for the ceiling mount. 4P+Auto 6D Keystone & 100%-50% Zoom:E30 proyector offers ±50° 6D auto correction, helps to set right pictures without effort and get rid of complicated manual keystone! Plus comprehensive 4-Point Correction, overcomes angles from room limitations in a few ways and bring flexibility to Front/Side/Ceiling Projection. Distortion-free 100-50% Zoom allows adjustment of the picture to the right size without moving it.Excel/Word/PPT can play via USB, makes it ideal for small meetings or presentations