We do not provide free sample.

We have QC and IQC department to test for income raw materials and the finish products to control all of the procedure, and ensure 100% aging until the quality is meeting the requirement

For brand products warranty is 3 years,for OEM order is 1 year.

We accept payment by T/T,Paypal,West Union,L/C etc.

Depends on order condition,usually 7 working days after payment received.

Yes.