Pre-sale Service: --24 Hours online service for your consult. --Help choose the right model, and a series of services, person, advice. --Give you the best offer. --Provide discount for many sets order. --Do customer's request. --Choose the payment term you convenient. --Promptly production and delivery, inform you in time. --Can provide invoice value as you like to decrease your tax. After-sale service: --1 year warranty service and all life maintenance. --Technical Engineers are available for oversea training. --Remote control technical consult. --Free installation DVD. --Maintenance plan.