Dear Sir, We are the manufacturer of visual presenter, interactive whiteboard etc. from China. We have been doing in this industry for about a decade. Our portable visual presenter is just put into the market, it is very decent with high quality which has gained a lot of interests from our customers. Should any of our produt be of interest to you, please let us know. We will be happy to give you a quotation upon receipt of your detailed requirements. Waiting for your soonest reply.Ms. Yokki Yukyokki(at)dineng.nethttp://www.dineng.net