The pretty shaky unit was unable to focus. No matter how carefully I centered my head, leveled and aligned, the result was always a Schärfeverlauf from left = hard right = very blurred. So you can record or project no A4 page. Send an email to the manufacturer's service has not been answered. For returning (to England) I had to pay 17 euros in postage, which were not (despite PRIME) refunded by the supplier even Amazon. So hands off - and more cautious in the future Amazon MarketPlace!