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.)
.

[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.
.