✭ High sensitivity, high quality sound effect
✭ Built-in lithium battery, super long endurance
✭ Support multiple courseware to flip pages, let teachers walk around in the classroom.
✭ Double microphone design, good pickup effect
✭ Self equipped laser pen function
✭ Support one key black screen / full screen function
✭ Two kinds of sound mode switching
✭ Three custom buttons that can be extended to function