1、he writing precision can reach ±0.05mm (±0.01mm in theory). 2、he sensing pressure is only 10g. The signal tracking rate can reach 5m/s, the signal processing rate can reach 480 dot/s. 3、he double-click function can be performed with ease or achieved through single-click. 4、an provide additional functions； 5、he maximum size can exceed 112 inches. 6、he resilient front sheet is made from polyester-based plastic, will not degrade or yellow after long-time usage. 7、sing robust aluminum honeycomb material, Its service life can reach 10 years. 8、he front sheet has gone through rigid aging test, and is proved not to be wrinkled. 9、Even part of the front sheet may stick to the backboard during long-time transportation, it will bounce back within 24 hours.