With dedication and specialty in educational instrument and solutions for more than 10 years, we own a proficient and experienced service personnel for our customers. We aim to offer efficient and professional service anytime to our customers.
We guarantee the quality warranties including: returning goods, exchanging goods and maintenance coordinated with our products regulations . The after-sales services are listed as follows:

How to clean the panel of NHBOARD?
Can 25-pin serial port replace 9-pin serial port?
How to do it when serial port is occupied?
What type of projector is needed to match with the interactive intelligent whiteboard?

User's Guide(PDF,2.3M )
Quantity Warranty(PDF, 43kb)
Products brochure (PDF,4.9MB)
NHboard Touch-Sensitive Catalogue (PDF,4.4MB)