The Genuine LG Wireless Charging Pad is an elegant desktop dock and charger for the LG G3. It is extremely simple to use--as simple as any ordinary smartphone dock. The only difference is that a microUSB port lies behind the cradle. This is where the charger feeds on electrical current and passes it to the phone. Stick one end of a microUSB cable into the charger, and the other end into an USB port or a charger, and you've got the WCD-100 working.