... 5, Operate by finger or pen Interactive white board specifications:1, Board Dimension :1775mm×1350mm×38mm2, Active Writing area:1643mm ... or a pen9,Power Supply: USB/2.4GWireless Bluetooth10, Electricity :DC 5V±0.111, Electric Current:130mA±5(USB ... holderOne USB cable5 meters,30 meters (optional)Accessory boxCDTM board suite softwareUser manual (PDF) MaterialUser manual,certification,guarantee ...