digital interactive whiteboard 1.Type of production Interactive2.effective dimensionsmm1080×14103.Board dimensionsmm1780×12304.Transmission PortalUSB5.Work theoryUltrasonic6.Hardware RoofCommon PC,Notebook PC7.Operational Systemwindows2000/windows XP/Vista8.Precision0.05MM9.Transmission PortalBaud rate of 1920010.Distinguish Quotiety4096409611.Power5V12.Electronic pen useful timeabout Three month13.Normative accessory:one pens,Date line, software CD14.Sizemm1780×1230×3015.Software functioncommon writing,palyback function,Screen theater function,searchlight functions,camera functions,magnifier functions,multimedia functions,channel into&lead out function,support Many country language16.weightkg21.5kg17.Environmental parameterCommon18.Working temperature-155019.Works humidity 209020.Stores temperature-405021.Stores humidity 109522.Term of service3 years