This product is either discontinued or we cannot get that from suppliers.
BenQ 5J.J9A26.11E PointWrite Pen, Auto Calibration, Multi-Writing up to 4 person, Dual Screen Interactive, BenQ Short Throw Model, Easy Installation & Quick Set-up, Fast Writing Response Time
The BenQ PointWriteT technology comes featuring multi-pens collaboration allowing up to 4 students to contribute at once. With 1-second auto calibration and fast writing response time, BenQ PointWriteT is effortless to set up and ensures an ultra smooth, interruption-free writing experience.