Except additional declaration,all products and services on ISV will provide three months of free maintenance. During free maintenance period, you can enjoy original engineer  provide you with maintenance services. Three months later, you can choose our separate maintenance services and iCar plan. Separate maintain will based on service hours and R & D functions separately, and will be evaluated by our system. Customer who have joined in our  iCar plan will enjoy 20% off discount on purchase. At present, we only support Beijing time during daytime, if the customer has higher requirements need to be negotiated.