1. IR multi touch 2.OS: windows 7, xp, linux . 3.Material: Aluminum, 4.New Software:excel, translate,etc 5 Speed: 120 dot Model: BGL-WB78 BGL-WB85 BGL-WB88 Specifications: Size: 78" 85"/88"Technology Type: ElectromagneticElectromagnetic Pen: Wireless Electromagnetic PenResolution: 1024*768,1280*800,1280*1024,1366*768 Effective size (mm): 1670mm*1170mm(T-XX) Response Speed:‹8msCursor Speed: 120 ...