精品视频一区在线观看,手机天堂中文在线看视频

	★Customized SDTECH-WT series Interactive whiteboard provides size customized.
★Precision touch SDTECH-WT series is using Infrared sensor technology, precise positioning, no drift.
	★ ★ Anti-ambient light SDTECH-WT series will not reduce the projection image contrast in the bright sunshine of direct sunlight.
★High speed chip SDTECH-WT series is using the high speed chip which fast 2times then standard chip.
	★ Easy to install SDTECH-WT series provides wall-mounted and removable installation, installations is simple, fast and secure.
★System support SDTECH-WT series is using free drive and support Windows, Android, MAC, Linux operating system.