TECHLAND is a professional manufacturer of multimedia teaching attachments such visualizer, whiteboard etc. Under help of years experience in this industry we are now the most influential visualizer supplier of over 50% Chinese market.Our visualizers on-sale: DN-1000/ DN-1020/ DN-1010/ DN-1030/ DN-1050/ DN-1080. Functions: Freeze, Black & White, Negative, Baselight compensation, Mirror, Brightness adjustment, Text, Contrast, Initialize, Image storage, Dynamic and static, Mode save/recall, center control etc.Mostly they will be assembled in multi-functional classroom or conference room, or work with projector/back projection, for a living presentation.Portable visualizer is on the way to sell.Our confidence and experience makes us very suitable to be the biggest supplier of the world market. Please kindly send me your requirement, we will assist you with high quality and satisfied service. Letâï¿Â½Ãƒ¯Ã‚¿Ã‚½s open the cooperation now!