All-in-one conference machine with touch writing function, conference whiteboard annotation handy. Handwriting is smooth, both fingers and pen can write, annotate at any time, support gesture erasure. Mobile phones and tablets can transfer screens wirelessly in the same network environment as the conference PC. With teleconference function, successful cooperation is not limited by distance. Support third-party remote conference software, equipped with cameras and microphones, colleagues and customers in front of you. Touch writing, touch interaction, software download, can meet a variety of meeting needs.