For iphone 11 Ear speaker replacment :
1.Package:we use individual transparent bag to contain the parts well and to label with sticker.
2.QC:We have strict inspection to test the electric parameters and function.
3.Stocks:Stable supplying system and enough stocks ensuring that we can finish testing and packing to send out the products faster.
4.Warranty:Well-done after-sale service,provide 18 months covering all quality issues(no man-made damage)