... anti-crash and waterproof capability82 inch Electronic whiteboard Interactive teaching, presentation, trainingClassroom, office, training workshops, meeting roomsGovernment, education, enterpriseGeneralTouch TechnologyInfrared TouchUnit Weight/Packing Weight ... <2W, operating current<200mAAgency ApprovalsCE, FCC ,RoHs Good quality 82" Interactive Electronic Whiteboard for school,classroom,college