Yes, all of our products are certified and have the appropriate markings.
There are two major types of wireless charging categories that most devices use called Qi or Powermat, Qi being the most predominant. Wireless chargers need to be plugged into the wall to charge the device, but do not require a cord to connect with your phone or tablet. It is normal for some heat to be emitted during charging, and it won't charge a quickly as using a cord, but it sure looks fancy. Please make sure when you go to purchase your wireless charger that you first check the compatibility with your phone or other devices.
It is normal for a little heat to be emitted from the product, but it shouldn't be too hot to handle. In this case, please stop using the product and contact our support channel for more help.