... Control Every touch screen tested with special instruments or main boards before delivery to ensure working. Both ... the customers those can come to our office or store Shipping Methods:Prompt delivery by UPS,EMS ... 3 days by DHL, UPS, TNT, EMS, or By Air Warranty:Usually, product warrantees last for ... Samples:Our company offers samples for quality test or other business purposes, but we kindly ask you to ...