... gram.5).Shipping Methods: Prompt delivery by UPS, EMS, DHL, TNT, or by air.6).Service: Best after sales ... with 2-4days by DHL, UPS, TNT, EMS, or By Air8). Warranty: Usually, product warrantees last for one year, but ... purposes, but we kindly ask you to pay for samples and the freight.10).Information: We update our ... CN-808 Headphones with In-Line Microphone and Volume Control for Computer ,COGOO