Dear Sir, Good day. This is Cindy from Oway Group. We are a manufacturer of portable interactive whiteboard device for education and office . By using our interactive device to connect with your existing computer and projector ,it can make projection area and any LCD screen to interactive touch screen ,which will makes your audience and students more centered and interactive. Our product are widely used for teaching system , which allows the teacher to fully control their computer and teaching software from the board ,use the IR pen to make accurate writing and annotating . Product main features: 1. Spread the signalthrough optical-electrical technology ,shadow do not block the signal . 2. Accurate writing and high-spend response 3.Connect and completely interactive in minutes with our device and your computer and projector 4.Make any projection area and LCD/ LED screen into interactive screen ,make your audience and students more centered and interactive 5.Support Windows2000 / Windows 7 / 8/ 10 ,Windows XP/ Linus/ Android system Please visit our website: www.owaysmart.com www.oway-group.com And please watching our youtube link: https://www.youtube.com/watch?v=DnGizSDH0Hg Pls feel free to contact with me after you checked the product and i will be offer you price upon get your further reply . Kind Regards, Cindy Oway Group Limited www.owaygroup.com www.oway-group.com Add: F4, Building 5 , XC Science Park, Changsha National High-Tech Zone, ChangshaCity, Hunan Province, China. Tel:+86-731-89729211 / 132 60770722 Whatsapp /Wechat /Mobile/Skype: +86-170 9673 1121 Email:sales03@owaysmart.com sales03@owayedu.com