... YesProjection SourcesiPhone4 / iPhone 4SPower Supply : Li-Polymer BatteryPower Input (USB) 5V, 500mAPower Output 5v,1APower ConsumptionProjection mode: 4.5WPower ... *67*20 mmProduct Weight:105g Package Content Projector , Pouch, USB cable, Quick Start GuideOptional Accessories: Power Adapter (5V,2A ... see it on the wall?A:Trimming focal length wheel to adjust focal length3.Q:Why in charging completed ...