About us , we have 10 years of experience manufacturer and we offer you 2 years warranty . During this time, All the equipment could be replace as free. and the shipping cost is half to half. We also support the on-line supprot for you. 24 hours serves with vedios. Of course, we also support the OEM and ODM severs for your business. The more and more important for our QC system which all the goods tested 3*24 hours befor packaged. Because we are the manufacturer You will got the good quality and good price from us.