Provide free operation skills training and teaching package. Regularly return visits to solve operational problems. Haishu's quality service and reputation have won the trust of the majority of users and the wide recognition of the society. One year free, 7*24 hours online service, and the neighboring province of Guangdong arrived at the scene within 72 hours.

7*24 hours professional customer service, response within 1 hour, quickly solve customer problems. The professional team will install and debug on site for you, and troubleshooting technical guidance during operation. Quality problems can reach the scene within 72 hours, eliminating customer worries