Zhongshan Volto Technology Co. Ltd, as top 5 LED projector manufacturer with ISO9001 ISO14001 approved in Zhongshan& China since 2001 .Volto factory specialized in full range of LCD DLP projectors for over 10years.&brQuality is our culture>all the multimedia projectors approved by CEROHS,FCCCCC,PSE etc certificates strictly tested 9 times before shipping. Defective rates tightly controlled at 0 .%brVolto provide 100> guarantee for every interactive projector from us. 12 months free replacement is available for any defaults br