The Galaxy Wireless Charger Duo and Wireless Charger Pad are companion charging devices for Galaxy Note 9 and Galaxy Watch. Two smartphones or one smartphone with a smartwatch can be charged at the same time using the Wireless Charger Duo. You simply place the devices on the charger without connecting any cables. The pad charges a smartwatch when placed in any direction, and the integrated groove holds the smartwatch in position and prevents it from sliding off the pad.