All the products have two years warranty. We will test it before sending them out. Our QC will check the quality which includes the basic functions of the hardware and software, the appearance, the packing, the necessary accessories and power adapter plug standard. After that, they will paste our own QC label in the form of month/date/year on every product.
If you have any using problems of the products which bought from 2m2tank.com, please tell us first, then we will do our best to give you help. Our engineer will offer you technical support via internet or email and you can also feedback on the 2M2 TANK APP.