We assure you of faith in what we sell.
  1, 30 days of unlimited warranty on the purchase and free service for 5 months.
  2, free service period, Parts that have broken down, purchased by the customer, technically this is free service. (We are not liable for lightning, natural disasters, and customer out-of-normal use.)
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[Repair]
1, repairs have a base charge of $ 20, and new parts are purchased by the consumer.

2, If we visit and repair, the repair work performed by the repair technician is $ 40 and the new part is purchased by the customer.
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