WePresent USB Pen/Pad AirPad Wireless Tablet Specification: Standards: Wireless 2.4G RF Maximum: 7~10 meters Active Area (WxD): 5 x 3 resolution: 4000 LPI Report Rate: 165 RPS Reading Height: 10 mm LED Indicator: 1 LED Power Consumption: 0.35 w Feature: Works w/WiPG-1500 or WiPG-2000 Onscreen annotation Interactive whiteboard USB bluetooth adapter Dimensions: 194 x 190 x 18.5 mm Weight: 359 g