Smooth interaction

Anti-light interference, anti-shading, adapt to a variety of environments; two-finger call out "quick wizard", the teacher operation is smoother; fast response, writing, presentation flow, and courseware classification management, courseware calling is more convenient.

                                                                                          Smart operation

Intelligent operation: any channel can be written, annotated and screenshots at will;

Intelligent identification: Automatically identify the signal matching the input channel, and automatically shut down without signal input;

Intelligent eye protection: ambient light detection and brightness self-adjustment to meet the needs of writing and viewing multiple scenes;

Smart lock: Quickly lock the screen touch and physical key functions to prevent accidental operation.