jensen 7 inch touch screen radio.4 , in a scanning period, a infrared receiving element member receives at different times from two different positions of the infrared emission element light emitted by element, from and to distinguish a plurality of touch points;

jensen 7 inch touch screen radio.4 , in a scanning period, a infrared receiving element member receives at different times from two different positions of the infrared emission element light emitted by element, from and to distinguish a plurality of touch points; IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.