Q 1. Is the device certified and why is it important?

Ans. The device you purchase must be of certified quality. This is because certification is a guarantee that all the manufacturing standards and procedures have been followed while manufacturing the product. Also all the basic standards have been adhered to while making the product so you do not need to worry about the performance and efficiency of the product. It will give good return in the long run so we can say that this is a full value for money product.