Q: Whether your shop supply return&maintance service?
A:Yes, as long as the goods in warranty date.
Q: Are the device free shipping?
A: Yes, but free shipping ways are post air mail.
Q: How many days post air mail cost.
A: Approx 30-60days.
Q: How can I track my order?
A: All the orders could be track on: http://www.17track.net/index_en.shtml