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Operating Principle：EMR   Smart ink   Bluetooth
Resolution：0.012mm（1 inch （25.4mm）/2048LPI）
Pens tilt angle：Relative vertical board with ± 45°
Response height：5 to 10mm from the surface of the effective area
Data Transfer Mode：Bluetooth 4.0
Writing Pad Power Supply：Lithium Battery（3.7V，950mAh）5V-500mA
Power Consumption：<45mA
Pen power supply：Lithium Battery（2.4V，45mAh）5V-100mA
Pen frequency band：148.5Hz to 5MHz
Pen max.output power：-5 dBμA/m
Software version：1.0.01
Refills：Ordinary Ballpen Core；￠2.3*67mm