Features：
Intelligent classroom teaching system -- eye protection series intelligent electronic blackboard parameters1, hardware equipment: Technical principle: infrared induction technology2, no special pen: Support hand, pen and pointer and other non-transparent objects directly on the board writing3, touch size: can achieve the touch size of 1130 *3660mm4, writing net size: 1130 *3660mm5, full-screen any area can achieve projection touch interaction6, touch accuracy: ≤ ±2mm7, 10-16 touch8, touch response time ≤10Ms
Features：
1, hardware equipment: Technical principle: infrared induction technology2, no special pen: Support hand, pen and pointer and other non-transparent objects directly on the board writing3, touch size: can achieve touch size 1446*3700mm4. Net writing size: 165 inches5, full-screen any area can achieve projection touch interaction6, touch accuracy: ≤ ±2mm7, 10-16 touch8, touch response time ≤2Ms
Features：
1, hardware equipment: Technical principle: infrared induction technology2, no special pen: Support hand, pen and pointer and other non-transparent objects directly on the board writing3, touch size: can achieve touch size 1120 *2300mm4. Net writing size: 150 inches5, full-screen any area can achieve projection touch interaction6, touch accuracy: ≤ ±2mm7, 10-16 touch8, touch response time ≤2Ms
Features：
1, hardware equipment: Technical principle: infrared induction technology2, no special pen: Support hand, pen and pointer and other non-transparent objects directly on the board writing3, touch size: can achieve touch size 1446*2300mm4. Net writing size: 165 inches5, full-screen any area can achieve projection touch interaction6, touch accuracy: ≤ ±2mm7, 10-16 touch8, touch response time ≤2Ms