• Perfect 4K resolution
• Front audio stereophonic speaker
• Industrial grade aluminium frame
• Multiple signal input HDMI, VGA, Video, YPbPr, TV etc.
• Infrared touch technology for rich writing experience
• Password / Pattern Lock protected
• 4mm protect glass and anti-scratch
• 20 points touch, <5~8ms response
• Support APK install & authorize management, permit or forbidden application
