I do not have the mat, but I need to write something to these reviews. One writes that not indicate which charging technology is used. This is nonsense. Buyers simply have no idea. There are two common techniques for Wireless Charging: QI and Powermat. In the product clearly stands Powermat. This is what the folks but not know and thought that this is determined QI, because it's wireless. Hostelling International advises you but first. Greetings!