... by finger or pen Interactive white board specifications:1, Board Dimension :1775mm×1350mm×38mm2, Active Writing ... :70g8,Writing Method:Finger or a pen9,Power Supply: USB/2.4GWireless Bluetooth10, Electricity : ... ±5(USB),500mA±5(Wireless Bluetooth)12,Power Consumption :0.7W(USB),4.5W(Wireless ... cable5 meters,30 meters (optional)Accessory boxCDTM board suite softwareUser manual (PDF) MaterialUser manual, ...