Tips: Owing to some certain reasons, these videos are not allowed to directly shown on this platform.
Detailed video info, pls copy the below links and open them in your browser. Sorry for the troubles brought to you.
Videos for LED Writing Board: http://www.ledwritingboard.cn/support/support/Video.html
Videos for LED Light Box: http://www.ledlightbox.cn/Video/
Some Transaction Records provided by Alibaba